CN117812598A - Side-link communication method and device - Google Patents

Abstract

The application provides a method and a device for side-link communication, which can be applied to the scenes of V2X, internet of vehicles, auxiliary driving, automatic driving and the like. The side-link communication method includes: acquiring first indication information for indicating a first resource, wherein the first resource is a resource occupied by LTE-V transmission, or the first resource is a candidate resource for LTE-V transmission, determining whether the resource occupied by LTE-V transmission overlaps with a second resource according to the first indication information, and the second resource is used for bearing feedback information corresponding to NR-V data so as to control the transmission of the feedback information corresponding to the NR-V data on the second resource, thereby ensuring that NR-V and LTE-V can realize dynamic coexistence of co-channel transmission on the premise of not influencing LTE-V performance.

Description

Side-link communication method and device

Technical Field

The present application relates to the field of communications, and more particularly, to a method and apparatus for side-link communications.

Background

In a new air interface (NR) side uplink system, a terminal device may communicate with other terminal devices in a resource pool, where physical side channel feedback channel (physical sidelink feedback channel, PSFCH) feedback resources are periodically configured in the resource pool, and physical side channel control channel (physical sidelink control channel, PSCCH) resources for transmitting data have a corresponding mapping relationship with the periodically configured PSFCH feedback resources. According to the standard Rel-18 protocol, a dedicated carrier is used to transmit PSFCH in a long term evolution based internet of vehicles (Long Term Evolution-vehicle, LTE-V) and a new air interface based internet of vehicles (NR-V) co-channel co-exist.

However, one purpose of co-channel coexistence is to utilize the spectrum of LTE-V transmission, and because LTE-V gradually moves back to the network, the number of users and the spectrum resources that need to be occupied for LTE-V transmission are reduced, so that the spectrum of LTE-V transmission can be shared to enable NR-V transmission, and the effect of improving the spectrum utilization efficiency can be achieved. On the other hand, it is not clear whether the spectrum dedicated to PSFCH transmission exists or not, and how to find such a set of time-frequency resources. Therefore, how to ensure that NR-V and LTE-V realize dynamic coexistence of co-channel transmission on the premise of not affecting LTE-V performance becomes a problem to be solved.

Disclosure of Invention

The application provides a side uplink communication method and a side uplink communication device, which can ensure that NR-V and LTE-V can realize dynamic coexistence of co-channel transmission on the premise of not influencing LTE-V performance.

In a first aspect, a method of side-link communication is provided, the method comprising: acquiring first indication information, wherein the first indication information is used for indicating first resources, the first resources are resources occupied by LTE-V transmission, and the first resources belong to a first resource set; according to the resources occupied by the LTE-V transmission, determining that the resources occupied by the LTE-V transmission are not overlapped with second resources, wherein the second resources are used for bearing feedback information corresponding to NR-V data, and the second resources belong to the first resource set; and sending feedback information corresponding to the NR-V data on the second resource.

Alternatively, the method comprises: acquiring first indication information, wherein the first indication information is used for indicating first resources, the first resources are resources occupied by LTE-V transmission, or the first resources are candidate resources for LTE-V transmission, and the first resources belong to a first resource set; and sending feedback information corresponding to the NR-V data on a second resource, wherein the second resource is not overlapped with the resources occupied by the LTE-V transmission, and the second resource belongs to the first resource set.

According to the scheme, the resources occupied by the LTE-V transmission are determined not to overlap with the second resources, so that feedback information corresponding to the NR-V data is sent on the second resources, the dynamic coexistence of the common channel transmission can be realized on the premise that the performance of the LTE-V is not affected by the NR-V and the LTE-V, namely, the feedback information corresponding to the NR-V data is sent on the premise that the performance of the LTE-V is not affected, and the performance of the NR-V is ensured.

It should be understood that the NR-V data is data transmitted using an NR wireless access system, and feedback information corresponding to the NR-V data is feedback information transmitted using the NR wireless access system.

In some embodiments, the first indication information is from an LTE-V module of the same terminal, that is, interaction or transparent transmission or transmission between an NR-V module and an LTE-V module included in the same terminal.

In some implementations, the first indication information is from transmissions between other terminals, i.e., different terminals. It should be appreciated that in this case, the first indication information may be the PSSCH, or the second SCI in the PSSCH, or a corresponding field in the second SCI in the PSSCH.

It is to be understood that resources occupied by an LTE-V transmission may be understood as reserved resources of an LTE-V, or reserved resources of an LTE-V transmission, or resources that have been indicated by LTE-V but not used, or resources that have been used by LTE-V and reserved resources.

It should be appreciated that this first set of resources is a set of shared resources, i.e. a set of resources shared by NR-V and LTE-V (i.e. for transmission of LTE-V as well as for transmission of NR-V). Or as a set of resources of LTE-V (and shared with NR-V), or as a portion where the set of LTE-V resources and the set of NE-V resources overlap.

In combination with the first aspect, in some implementations of the first aspect, the method provided by the first aspect may be performed by a first terminal, and the first resource may be determined by an LTE-V module of the first terminal. The first terminal or the NR-V module of the first terminal can acquire the indication information of the first resource through the LTE-V module.

In combination with the first aspect, in some implementations of the first aspect, the method provided in the first aspect may be performed by a first terminal, and the first resource may be determined by an LTE-V module of a second terminal. The first terminal or an NR-V module of the first terminal receives the indication information of the first resource of the second terminal device.

The terminal equipment can improve the reliability and flexibility of the communication method by acquiring the first resource. The NR-V is guaranteed to use the resource pool of LTE-V without affecting the LTE-V transmission.

With reference to the first aspect, in some implementations of the first aspect, the first resource is a resource occupied by LTE-V transmission, and an energy measurement corresponding to the first resource is greater than a first threshold. By considering the energy measurement value in the process of determining the first resource, the first terminal can utilize the resource with lower LTE-V energy measurement value, thereby improving the utilization efficiency of the resource and not affecting the transmission of LTE-V.

With reference to the first aspect, in some implementations of the first aspect, feedback information corresponding to the NR-V data is carried in a PSFCH, and PSFCH resources are periodically configured in a shared resource pool. The shared resource pool may be understood as the first set of resources.

With reference to the first aspect, in some implementations of the first aspect, feedback information corresponding to the NR-V data is carried in a PSFCH, and PSFCH resources are periodically configured in a NR-V resource pool, where the NR-V resource pool includes the first resource set. That is, the resource pool of the NR-V may be the first set of resources, or the resource pool of the NR-V may comprise the first set of resources and a set of resources dedicated to NR-V. If the second resource is located in a resource set dedicated to NR-V, feedback information corresponding to the NR-V data is sent on the second resource.

With reference to the first aspect, in some implementations of the first aspect, the determining, according to the first indication information, that resources occupied by LTE-V transmission and second resources do not overlap, or that the second resources do not overlap with resources occupied by LTE-V transmission includes: the first resource and the second resource do not overlap in the time domain. I.e. the first resource is any one of the set of resources occupied by LTE-V transmission, the first resource and the second resource do not overlap in the time domain, i.e. the second resource and the resources occupied by LTE-V transmission do not overlap in the time domain. Therefore, the NR-V and the LTE-V can be ensured to realize dynamic coexistence of co-channel transmission on the premise of not influencing the LTE-V performance, and the NR-V performance is ensured on the premise of not influencing the LTE-V performance.

With reference to the first aspect, in certain implementations of the first aspect, the energy measure is an RSRP measure, and the first threshold corresponds to a first priority and/or a second priority, where the first priority is a priority used in LTE-V resource selection or reselection, and the second priority is a priority indicated in the side control information SCI.

It should be understood that SCI is control information carried in PSCCH, and in LTE-V SCI may also be understood or replaced by SA.

It is understood that the Priority may be a Priority in LTE-V transmission (PPPP), or a Priority in NR-V transmission.

With reference to the first aspect, in certain implementations of the first aspect, the energy measure is one of an RSSI measure, a CQI measure, an SINR measure, an SNR measure, and the first threshold is preset or configured.

The RSSI measurement is a linear average of the total received power over each symbol in the configured sub-channel in the symbols used to transmit the PSSCH (e.g., carrying data).

In some implementations, the energy measurement may be an RSRP measurement and a measurement of RSSI.

The terminal device can improve the reliability and flexibility of the communication method by determining different energy measurement values.

With reference to the first aspect, in some implementations of the first aspect, the determining that the resources occupied by the LTE-V transmission and the second resources do not overlap or that the second resources do not overlap with the resources occupied by the LTE-V transmission according to the resources occupied by the LTE-V transmission includes: determining that the time domain range of the first resource includes the time domain resource of the second resource.

Based on the technical scheme, according to the judgment that the resources occupied by the LTE-V transmission and the resources of the feedback information corresponding to the NR-V data are not overlapped in the time domain and the feedback information is sent, the dynamic coexistence of the common channel transmission can be realized on the premise of not influencing the LTE-V performance by the NR-V and the LTE-V, namely the feedback information corresponding to the NR-V data is sent on the premise of not influencing the LTE-V performance, and the performance of the NR-V is ensured.

In a second aspect, there is provided a method of side-link communication, the method comprising: acquiring first indication information, wherein the first indication information is used for indicating first resources, the first resources are candidate resources for LTE-V transmission, and the first resources belong to a first resource set; according to the candidate resource for LTE-V transmission, determining that the resource occupied by LTE-V transmission is not overlapped with a second resource, wherein the second resource is used for bearing feedback information corresponding to NR-V data, and the second resource belongs to the first resource set; and sending feedback information corresponding to the NR-V data on the second resource.

Alternatively, the method comprises: acquiring first indication information, wherein the first indication information is used for indicating first resources, the first resources are resources occupied by LTE-V transmission, or the first resources are candidate resources for LTE-V transmission, and the first resources belong to a first resource set; and sending feedback information corresponding to the NR-V data on a second resource, wherein the second resource is not overlapped with the resources occupied by the LTE-V transmission, and the second resource belongs to the first resource set.

According to the scheme, the resources occupied by the LTE-V transmission are determined not to overlap with the second resources, so that feedback information corresponding to the NR-V data is sent on the second resources, the dynamic coexistence of the common channel transmission can be realized on the premise that the performance of the LTE-V is not affected by the NR-V and the LTE-V, namely, the feedback information corresponding to the NR-V data is sent on the premise that the performance of the LTE-V is not affected, and the performance of the NR-V is ensured.

It should be understood that the NR-V data is data transmitted using an NR wireless access system, and feedback information corresponding to the NR-V data is feedback information transmitted using the NR wireless access system. The candidate resource for LTE-V transmission may be understood as a single subframe candidate resource or a single candidate resource or a candidate subframe resource.

In some embodiments, the first indication information is from an LTE-V module of the same terminal, that is, interaction or transparent transmission or transmission between an NR-V module and an LTE-V module included in the same terminal.

In some implementations, the first indication information is from transmissions between other terminals, i.e., different terminals. It should be appreciated that in this case, the first indication information may be the PSSCH, or the second SCI in the PSSCH, or a corresponding field in the second SCI in the PSSCH. .

It should be appreciated that this first set of resources is a set of shared resources, i.e. a set of resources shared by NR-V and LTE-V (i.e. for transmission of LTE-V as well as for transmission of NR-V). Or as a set of resources of LTE-V (and shared with NR-V), or as a portion where the set of LTE-V resources and the set of NE-V resources overlap.

Wherein the method provided by the second aspect may be performed by the first terminal, in combination with the second aspect, and in certain implementations of the second aspect, the first resource may be determined by an LTE-V module of the first terminal. The first terminal or the NR-V module of the terminal can acquire the indication information of the first resource through the LTE-V module.

Wherein the method provided by the second aspect may be performed by the first terminal, in combination with the second aspect, and in certain implementations of the second aspect, the first resource may be determined by an LTE-V module of the second terminal. The first terminal or an NR-V module of the first terminal receives the indication information of the first resource of the second terminal device.

The terminal equipment can improve the reliability and flexibility of the communication method by acquiring the first resource. The NR-V is guaranteed to use the resource pool of LTE-V without affecting the LTE-V transmission.

With reference to the second aspect, in some implementations of the second aspect, the first resource is a remaining candidate resource in a second resource set excluding candidate resources overlapping with resources occupied by LTE-V transmission, the second resource set belongs to the first resource set, and the second resource set is a resource set in a resource selection window corresponding to LTE-V transmission. Due to the influence of the PSFCH AGC symbol, the NR-V module determines a candidate resource set according to the reserved resource of the LTE-V, so that the transmission on the PSFCH AGC symbol can be ensured to the greatest extent not to influence the transmission of the LTE-V.

It should be appreciated that the resource selection window is a time window, or a time period, or a set of subframes, or a set of time slots.

With reference to the second aspect, in some implementations of the second aspect, the first resource is a remaining candidate resource in the second resource set excluding a candidate resource overlapping with a resource occupied by LTE-V transmission, and the energy measurement value corresponding to the first resource is not higher than a first threshold. By considering the energy measurement value in the process of determining the first resource, the resource with lower LTE-V energy measurement value can be utilized, the resource utilization efficiency is improved, and the transmission of LTE-V is not affected.

With reference to the second aspect, in some implementations of the second aspect, feedback information corresponding to the NR-V data is carried in a PSFCH, and PSFCH resources are periodically configured in a shared resource pool. The shared resource pool may be understood as the first set of resources.

With reference to the second aspect, in some implementations of the second aspect, feedback information corresponding to the NR-V data is carried in a PSFCH, and PSFCH resources are periodically configured in a NR-V resource pool, where the NR-V resource pool includes the first resource set. That is, the resource pool of the NR-V may be the first set of resources, or the resource pool of the NR-V may comprise the first set of resources and a set of resources dedicated to NR-V. If the second resource is located in a resource set dedicated to NR-V, feedback information corresponding to the NR-V data is sent on the second resource.

With reference to the second aspect, in some implementations of the second aspect, the determining that the resource occupied by the LTE-V transmission and the second resource do not overlap according to the candidate resource for the LTE-V transmission, or the second resource does not overlap with the resource occupied by the LTE-V transmission includes: determining that the resources occupied by the LTE-V transmission and the second resources do not overlap in the time domain when at least one of the following conditions is met:

In some implementations, the second resource belongs to the first resource, and a fourth resource does not overlap with the second resource in a time domain, where the fourth resource is at least one candidate resource included in the first time slot, and a remaining candidate resource of the first resource is excluded from the candidate resources, and the first time domain unit is a time domain unit where the second resource is located.

In some implementations, the second resource belongs to the first resource, and the number of candidate resources included in the first time slot is equal to a second threshold, the second threshold being a maximum number of candidate resources included in the first time domain unit; or alternatively

In some implementations, the fourth resource does not overlap with the second resource in the time domain.

In some implementations, the number of fourth resources is 0.

In some implementations, the number of candidate resources included by the first time domain unit is equal to a second threshold.

In some implementations, any one of the candidate resources is not excluded from the first time unit. It should be understood that the number of the fourth resources is 0, which may be understood that any candidate resource is not excluded from the first time domain unit, or the number of candidate resources excluded from the first time domain unit is 0.

It is to be understood that the time domain unit may be understood as a subframe in LTE-V and as a slot in NR-V.

By determining that the first resource overlaps with the second resource, it is determined that the resource occupied by LTE-V transmission does not overlap with the second resource, i.e. any candidate resource is not excluded in the first time unit, and no LTE-V transmission is present in the time unit, i.e. the transmission of PSFCH has no effect on LTE-V transmission. The method can ensure that NR-V and LTE-V can realize dynamic coexistence of co-channel transmission on the premise of not influencing LTE-V performance, and simultaneously ensure NR-V performance on the premise of not influencing LTE-V performance. With reference to the second aspect, in certain implementations of the second aspect, the energy measure is an RSRP measure, and the first threshold corresponds to a first priority and/or a second priority, where the first priority is a priority used in LTE-V resource selection or reselection, and the second priority is a priority indicated in the side control information SCI.

It should be understood that SCI is control information carried in PSCCH, and in LTE-V SCI may also be understood or replaced by SA.

It is understood that the Priority may be a Priority in LTE-V transmission (PPPP), or a Priority in NR-V transmission.

With reference to the second aspect, in certain implementations of the second aspect, the energy measure is one of an RSSI measure, a CQI measure, an SINR measure, an SNR measure, and the first threshold is preset or configured.

The RSSI measurement is a linear average of the total received power over each symbol in the configured sub-channel in the symbols used to transmit the PSSCH (e.g., carrying data).

In some implementations, the energy measurement may be an RSRP measurement and a measurement of RSSI.

The terminal device can improve the reliability and flexibility of the communication method by determining different energy measurement values.

With reference to the second aspect, in some implementations of the second aspect, the determining, according to the first indication information, that the resource occupied by the LTE-V transmission and the second resource do not overlap, or that the second resource does not overlap with the resource occupied by the LTE-V transmission includes: determining that the time domain range of the first resource includes the time domain resource of the second resource.

Based on the technical scheme, according to the candidate resources for LTE-V transmission, the resources occupied by the LTE-V transmission and the resources corresponding to the PSFCH of the NR-V transmission are determined not to overlap in the time domain and feedback information is sent, so that co-channel coexistence can be realized on the premise of not affecting the LTE-V performance.

In a third aspect, a method of side-link communication is provided, the method comprising: acquiring first indication information, wherein the first indication information is used for indicating first resources, the first resources are resources occupied by LTE-V transmission, and the first resources belong to a first resource set; determining a second resource according to a third resource, wherein the third resource is a candidate resource for sending NR-V data, the second resource is a resource for bearing feedback information corresponding to the NR-V data, and the second resource belongs to the first resource set; according to the resources occupied by the LTE-V transmission, determining that the resources occupied by the LTE-V transmission are not overlapped with the second resources; and sending second indication information, wherein the second indication information is used for indicating that the HARQ corresponding to the NR-V data is enabled, and the HARQ is feedback information on a bearing second resource.

Alternatively, the method comprises: acquiring first indication information, wherein the first indication information is used for indicating first resources, the first resources are resources occupied by LTE-V transmission, and the first resources belong to a first resource set; and sending second indication information, wherein the second indication information is used for indicating that hybrid automatic repeat request (HARQ) corresponding to the NR-V data is enabled, the HARQ is feedback information carried on a second resource, and the second resource is not overlapped with the resource occupied by the LTE-V transmission.

According to the scheme, the HARQ information corresponding to the NR-V data is enabled by determining that the resources occupied by the LTE-V transmission are not overlapped with the second resources, so that the co-channel coexistence can be realized on the premise of not influencing the LTE-V performance, namely the feedback information corresponding to the NR-V data is sent on the premise of not influencing the LTE-V performance, and the NR-V performance is ensured.

It should be understood that the NR-V data is data transmitted using an NR wireless access system, and feedback information corresponding to the NR-V data is feedback information transmitted using the NR wireless access system. In some embodiments, the first indication information is from an LTE-V module of the same terminal, that is, interaction or transparent transmission or transmission between an NR-V module and an LTE-V module included in the same terminal.

In some implementations, the first indication information is from transmissions between other terminals, i.e., different terminals. It should be appreciated that in this case, the first indication information may be the PSSCH, or the second SCI in the PSSCH, or a corresponding field in the second SCI in the PSSCH.

It should be appreciated that the second indication information may be the PSSCH, or a second SCI in the PSSCH, or a corresponding field in the second SCI in the PSSCH. Or an "indication enable/disable HARQ" field in the second stage SCI.

It is to be understood that resources occupied by an LTE-V transmission may be understood as reserved resources of an LTE-V, or reserved resources of an LTE-V transmission, or resources that have been indicated by LTE-V but not used, or resources that have been used by LTE-V and reserved resources.

It should be appreciated that this first set of resources is a set of shared resources, i.e. a set of resources shared by NR-V and LTE-V (i.e. for transmission of LTE-V as well as for transmission of NR-V). Or as a set of resources of LTE-V (and shared with NR-V), or as a portion where the set of LTE-V resources and the set of NE-V resources overlap.

Wherein the method provided by the third aspect may be performed by the first terminal, with reference to the third aspect, in certain implementations of the third aspect, the first resource may be determined by an LTE-V module of the first terminal. The first terminal or the NR-V module of the terminal can acquire the indication information of the first resource through the LTE-V module.

Wherein the method provided by the third aspect may be performed by the first terminal, with reference to the third aspect, in certain implementations of the third aspect, the first resource may be determined by an LTE-V module of the second terminal. The first terminal or an NR-V module of the first terminal receives the indication information of the first resource of the second terminal device.

The terminal equipment can improve the reliability and flexibility of the communication method by acquiring the first resource. The NR-V is guaranteed to use the resource pool of LTE-V without affecting the LTE-V transmission. With reference to the third aspect, in some implementations of the third aspect, the first resource is a resource occupied by LTE-V transmission, and an energy measurement corresponding to the first resource is greater than a first threshold. By considering the energy measurement value in the process of determining the first resource, the resource with lower LTE-V energy measurement value can be utilized, the resource utilization efficiency is improved, and the transmission of LTE-V is not affected.

With reference to the third aspect, in some implementations of the third aspect, feedback information corresponding to the NR-V data is carried in a PSFCH, and PSFCH resources are periodically configured in a shared resource pool. The shared resource pool may be understood as the first set of resources.

With reference to the third aspect, in some implementations of the third aspect, feedback information corresponding to the NR-V data is carried in a PSFCH, and PSFCH resources are periodically configured in a NR-V resource pool, where the NR-V resource pool includes the first resource set. That is, the resource pool of the NR-V may be the first set of resources, or the resource pool of the NR-V may comprise the first set of resources and a set of resources dedicated to NR-V. If the second resource is located in a resource set dedicated to NR-V, feedback information corresponding to the NR-V data is sent on the second resource.

With reference to the third aspect, in some implementations of the third aspect, the determining that the resources occupied by the LTE-V transmission and the second resources do not overlap or that the second resources do not overlap with the resources occupied by the LTE-V transmission according to the resources occupied by the LTE-V transmission includes: the first resource and the second resource do not overlap in the time domain. I.e. the first resource is any one of a set of resources occupied by LTE-V transmissions and the energy measurement is greater than a first threshold, the first resource and the second resource do not overlap in the time domain, i.e. the second resource and the resources occupied by LTE-V transmissions do not overlap in the time domain. Therefore, the NR-V and the LTE-V can be ensured to realize dynamic coexistence of co-channel transmission on the premise of not influencing the LTE-V performance, and the NR-V performance is ensured on the premise of not influencing the LTE-V performance.

With reference to the third aspect, in certain implementations of the third aspect, the energy measure is an RSRP measure, and the first threshold corresponds to a first priority and/or a second priority, where the first priority is a priority used in LTE-V resource selection or reselection, and the second priority is a priority indicated in the side control information SCI.

It should be understood that SCI is control information carried in PSCCH, and in LTE-V SCI may also be understood or replaced by SA.

It is understood that the Priority may be a Priority in LTE-V transmission (PPPP), or a Priority in NR-V transmission.

In some implementations, the energy measure is one of an RSSI measure, a CQI measure, an SINR measure, an SNR measure, the first threshold being preset or configured. The RSSI measurement is a linear average of the total received power over each symbol in the configured sub-channel in the symbols used to transmit the PSSCH (e.g., carrying data).

Alternatively, the energy measurement may be an RSRP measurement and a RSSI measurement.

The terminal device can improve the reliability and flexibility of the communication method by determining different energy measurement values. With reference to the third aspect, in some implementations of the third aspect, the determining that the resources occupied by the LTE-V transmission and the second resources do not overlap or that the second resources do not overlap with the resources occupied by the LTE-V transmission according to the resources occupied by the LTE-V transmission includes: determining that the time domain range of the first resource includes the time domain resource of the second resource.

According to the scheme, the resource occupied by LTE-V transmission is determined not to overlap with the second resource, so that HARQ information of the NR-V data corresponding to the first data is enabled, co-channel coexistence can be realized on the premise of not influencing LTE-V performance, namely feedback information corresponding to the NR-V data is sent on the premise of not influencing LTE-V performance, and NR-V performance is guaranteed.

In a fourth aspect, a method of side-link communication is provided, the method comprising: acquiring first indication information, wherein the first indication information is used for indicating first resources, the first resources are candidate resources for LTE-V transmission, and the first resources belong to a first resource set; determining a second resource according to a third resource, wherein the third resource is a candidate resource for sending NR-V data, the second resource is a resource for bearing feedback information corresponding to the NR-V data, and the second resource belongs to the first resource set; according to the candidate resource for LTE-V transmission, determining that the resource occupied by LTE-V transmission and the second resource are not overlapped; and sending second indication information, wherein the second indication information is used for indicating that hybrid automatic repeat request (HARQ) corresponding to the NR-V data is enabled, and the HARQ is used for carrying feedback information on a second resource.

Alternatively, the method comprises: acquiring first indication information, wherein the first indication information is used for indicating first resources, the first resources are candidate resources for LTE-V transmission, and the first resources belong to a first resource set; and sending second indication information, wherein the second indication information is used for indicating that hybrid automatic repeat request (HARQ) corresponding to the NR-V data is enabled, the HARQ is feedback information carried on a second resource, and the second resource is not overlapped with the resource occupied by the LTE-V transmission.

According to the scheme, the resource occupied by LTE-V transmission is determined not to overlap with the second resource, so that HARQ information of the NR-V data corresponding to the first data is enabled, co-channel coexistence can be realized on the premise of not influencing LTE-V performance, namely feedback information corresponding to the NR-V data is sent on the premise of not influencing LTE-V performance, and NR-V performance is guaranteed.

It should be understood that the NR-V data is data transmitted using an NR wireless access system, and feedback information corresponding to the NR-V data is feedback information transmitted using the NR wireless access system. The candidate resource for LTE-V transmission may be understood as a single subframe candidate resource or a single candidate resource or a candidate subframe resource.

In some embodiments, the first indication information is from an LTE-V module of the same terminal, that is, interaction or transparent transmission or transmission between an NR-V module and an LTE-V module included in the same terminal.

In some implementations, the first indication information is from transmissions between other terminals, i.e., different terminals. It should be appreciated that in this case, the first indication information may be the PSSCH, or the second SCI in the PSSCH, or a corresponding field in the second SCI in the PSSCH.

It should be appreciated that the second indication information may be the PSSCH, or a second SCI in the PSSCH, or a corresponding field in the second SCI in the PSSCH. Or an "indication enable/disable HARQ" field in the second stage SCI.

It should be appreciated that this first set of resources is a set of shared resources, i.e. a set of resources shared by NR-V and LTE-V (i.e. for transmission of LTE-V as well as for transmission of NR-V). Or as a set of resources of LTE-V (and shared with NR-V), or as a portion where the set of LTE-V resources and the set of NE-V resources overlap. Wherein the method provided by the fourth aspect may be performed by the first terminal, in combination with the fourth aspect, and in certain implementations of the fourth aspect, the first resource may be determined by an LTE-V module of the first terminal. The first terminal or the NR-V module of the terminal can acquire the indication information of the first resource through the LTE-V module.

Wherein the method provided by the fourth aspect may be performed by the first terminal, in combination with the fourth aspect, and in certain implementations of the fourth aspect, the first resource may be determined by an LTE-V module of the second terminal. The first terminal or an NR-V module of the first terminal receives the indication information of the first resource of the second terminal device.

The terminal equipment can improve the reliability and flexibility of the communication method by acquiring the first resource. The NR-V is guaranteed to use the resource pool of LTE-V without affecting the LTE-V transmission.

With reference to the fourth aspect, in some implementations of the fourth aspect, the first resource is a remaining candidate resource in the second resource set excluding candidate resources overlapping with resources occupied by LTE-V transmission, and the second resource set is a resource set in a resource selection window corresponding to LTE-V transmission. Due to the influence of the PSFCH AGC symbol, the NR-V module determines a candidate resource set according to the reserved resource of the LTE-V, so that the transmission on the PSFCH AGC symbol can be ensured to the greatest extent not to influence the transmission of the LTE-V.

It should be appreciated that the resource selection window is a time window, or a time period, or a set of subframes, or a set of time slots.

With reference to the fourth aspect, in some implementations of the fourth aspect, the first resource is a remaining candidate resource in the second resource set excluding a candidate resource overlapping with a resource occupied by LTE-V transmission, and the energy measurement value corresponding to the first resource is not higher than a first threshold. By considering the energy measurement value in the process of determining the first resource, the resource with lower LTE-V energy measurement value can be utilized, the resource utilization efficiency is improved, and the transmission of LTE-V is not affected.

With reference to the fourth aspect, in some implementations of the fourth aspect, feedback information corresponding to the NR-V data is carried in a PSFCH, and PSFCH resources are periodically configured in a shared resource pool. The shared resource pool may be understood as the first set of resources.

With reference to the fourth aspect, in some implementations of the fourth aspect, feedback information corresponding to the NR-V data is carried in a PSFCH, and PSFCH resources are periodically configured in a NR-V resource pool, where the NR-V resource pool includes the first resource set. That is, the resource pool of the NR-V may be the first set of resources, or the resource pool of the NR-V may comprise the first set of resources and a set of resources dedicated to NR-V. If the second resource is located in a resource set dedicated to NR-V, feedback information corresponding to the NR-V data is sent on the second resource.

With reference to the fourth aspect, in some implementations of the fourth aspect, the determining that the resource occupied by the LTE-V transmission and the second resource do not overlap according to the candidate resource for the LTE-V transmission, or the second resource does not overlap with the resource occupied by the LTE-V transmission includes: determining that the resources occupied by the LTE-V transmission and the second resources do not overlap in the time domain when at least one of the following conditions is met:

In some implementations, the second resource belongs to the first resource, and a fourth resource does not overlap with the second resource in a time domain, where the fourth resource is at least one candidate resource included in the first time slot, and the remaining candidate resources of the first resource are excluded from the at least one candidate resource, and the first time slot is a time slot in which the second resource is located.

In some implementations, the second resource belongs to the first resource, and the number of candidate resources included in the first time slot is equal to a second threshold, the second threshold being a maximum number of candidate resources included in the first time slot; or alternatively

In some implementations, the fourth resource does not overlap with the second resource in the time domain.

In some implementations, the number of fourth resources is 0.

In some implementations, the number of candidate resources included in the first time slot is equal to a second threshold.

In some implementations, any one of the candidate resources is not excluded from the first time unit.

It should be understood that the number of the fourth resources is 0, which may be understood that any candidate resource is not excluded from the first time domain unit, or the number of candidate resources excluded from the first time domain unit is 0.

It is to be understood that the time domain unit may be understood as a subframe in LTE-V and as a slot in NR-V.

By determining that the first resource overlaps with the second resource, it is determined that the resource occupied by LTE-V transmission does not overlap with the second resource, i.e. any candidate resource is not excluded in the first time unit, and no LTE-V transmission is present in the time unit, i.e. the transmission of PSFCH has no effect on LTE-V transmission. The method can ensure that NR-V and LTE-V can realize dynamic coexistence of co-channel transmission on the premise of not influencing LTE-V performance, and simultaneously ensure NR-V performance on the premise of not influencing LTE-V performance.

With reference to the fourth aspect, in certain implementations of the fourth aspect, the energy measure is an RSRP measure, and the first threshold corresponds to a first priority and/or a second priority, the first priority being a priority used in LTE-V resource selection or reselection, and the second priority being a priority indicated in the side control information SCI.

It should be understood that SCI is control information carried in PSCCH, and in LTE-V SCI may also be understood or replaced by SA.

It is understood that the Priority may be a Priority in LTE-V transmission (PPPP), or a Priority in NR-V transmission.

In some implementations, the energy measure is one of an RSSI measure, a CQI measure, an SINR measure, an SNR measure, the first threshold being preset or configured.

The RSSI measurement is a linear average of the total received power over each symbol in the configured sub-channel in the symbols used to transmit the PSSCH (e.g., carrying data).

In some implementations, the energy measurement may be an RSRP measurement and a measurement of RSSI.

The terminal device can improve the reliability and flexibility of the communication method by determining different energy measurement values.

With reference to the fourth aspect, in some implementations of the fourth aspect, the determining, according to the first indication information, that the resource occupied by the LTE-V transmission and the second resource do not overlap, or that the second resource does not overlap with the resource occupied by the LTE-V transmission includes: determining that the time domain range of the first resource includes the time domain resource of the second resource.

Based on the technical scheme, according to the candidate resources for LTE-V transmission, the resources occupied by the LTE-V transmission and the resources corresponding to the PSFCH of the NR-V transmission are determined not to overlap in the time domain and feedback information is sent, so that co-channel coexistence can be realized on the premise of not affecting the LTE-V performance.

In a fifth aspect, there is provided a method of side-link communication, the method comprising: acquiring first indication information, wherein the first indication information is used for indicating first resources, the first resources are resources occupied by LTE-V transmission, and the first resources belong to a first resource set; determining a second resource according to a third resource, wherein the third resource is a candidate resource for sending NR-V data, the second resource is a resource for bearing feedback information corresponding to the NR-V data, and the second resource belongs to the first resource set; according to the resources occupied by the LTE-V transmission, determining that the resources occupied by the LTE-V transmission are not overlapped with the second resources; the NR-V data is transmitted on the third resource.

Alternatively, the method comprises: acquiring first indication information, wherein the first indication information is used for indicating first resources, the first resources are resources occupied by LTE-V transmission, and the first resources belong to a first resource set; and sending NR-V data on a third resource, wherein a second resource corresponding to the third resource is not overlapped with the resource occupied by the LTE-V transmission, the second resource is used for bearing feedback information corresponding to the NR-V data, and the second resource belongs to the first resource set.

According to the scheme, the resources occupied by LTE-V transmission are determined not to overlap with the second resources, so that NR-V data is sent by using the third resources corresponding to the second resources, co-channel coexistence can be realized on the premise of not influencing LTE-V performance, namely feedback information corresponding to the NR-V data is sent on the premise of not influencing LTE-V performance, and NR-V performance is guaranteed.

It should be understood that the NR-V data is data transmitted using an NR wireless access system, and feedback information corresponding to the NR-V data is feedback information transmitted using the NR wireless access system.

It should be understood that the NR-V data is transmitted on the third resource, which may be understood as the NR-V data is transmitted by selecting the third resource in the resource selection process, or the NR-V data is transmitted by using the third resource after the resource selection process is completed.

It will be appreciated that the second resource is implicitly associated with the third resource, the terminal device being able to determine the second resource by means of the third resource, or the terminal device being able to determine the third resource by means of the second resource.

In some embodiments, the first indication information is from an LTE-V module of the same terminal, that is, interaction or transparent transmission or transmission between an NR-V module and an LTE-V module included in the same terminal.

In some implementations, the first indication information is from transmissions between other terminals, i.e., different terminals. It should be appreciated that in this case, the first indication information may be the PSSCH, or the second SCI in the PSSCH, or a corresponding field in the second SCI in the PSSCH.

It is to be understood that resources occupied by an LTE-V transmission may be understood as reserved resources of an LTE-V, or reserved resources of an LTE-V transmission, or resources that have been indicated by LTE-V but not used, or resources that have been used by LTE-V and reserved resources.

It should be appreciated that this first set of resources is a set of shared resources, i.e. a set of resources shared by NR-V and LTE-V (i.e. for transmission of LTE-V as well as for transmission of NR-V). Or as a set of resources of LTE-V (and shared with NR-V), or as a portion where the set of LTE-V resources and the set of NE-V resources overlap.

The method provided by the fifth aspect may be performed by the first terminal, with reference to the fifth aspect, and in some implementations of the fifth aspect, the first resource may be determined by an LTE-V module of the first terminal. The first terminal or the NR-V module of the terminal can acquire the indication information of the first resource through the LTE-V module.

The method provided by the fifth aspect may be performed by the first terminal, with reference to the fifth aspect, and in some implementations of the fifth aspect, the first resource may be determined by an LTE-V module of the second terminal. The first terminal or an NR-V module of the first terminal receives the indication information of the first resource of the second terminal device.

The terminal equipment can improve the reliability and flexibility of the communication method by acquiring the first resource. The NR-V is guaranteed to use the resource pool of LTE-V without affecting the LTE-V transmission.

With reference to the fifth aspect, in some implementations of the fifth aspect, the first resource is a resource occupied by LTE-V transmission, and an energy measurement corresponding to the first resource is greater than a first threshold. By considering the energy measurement value in the process of determining the first resource, the resource with lower LTE-V energy measurement value can be utilized, the resource utilization efficiency is improved, and the transmission of LTE-V is not affected.

With reference to the fifth aspect, in some implementations of the fifth aspect, feedback information corresponding to the NR-V data is carried in a PSFCH, and PSFCH resources are periodically configured in a shared resource pool. The shared resource pool may be understood as the first set of resources.

With reference to the fifth aspect, in some implementations of the fifth aspect, feedback information corresponding to the NR-V data is carried in a PSFCH, and PSFCH resources are periodically configured in a NR-V resource pool, where the NR-V resource pool includes the first resource set. That is, the resource pool of the NR-V may be the first set of resources, or the resource pool of the NR-V may comprise the first set of resources and a set of resources dedicated to NR-V. If the second resource is located in a resource set dedicated to NR-V, feedback information corresponding to the NR-V data is sent on the second resource.

With reference to the fifth aspect, in some implementations of the fifth aspect, the determining that the resources occupied by the LTE-V transmission and the second resources do not overlap or the second resources do not overlap with the resources occupied by the LTE-V transmission according to the resources occupied by the LTE-V transmission includes: the first resource and the second resource do not overlap in the time domain. I.e. the first resource is any one of the set of resources occupied by LTE-V transmission, the first resource and the second resource do not overlap in the time domain, i.e. the second resource and the resources occupied by LTE-V transmission do not overlap in the time domain. Therefore, the NR-V and the LTE-V can be ensured to realize dynamic coexistence of co-channel transmission on the premise of not influencing the LTE-V performance, and the NR-V performance is ensured on the premise of not influencing the LTE-V performance.

With reference to the fifth aspect, in certain implementations of the fifth aspect, the energy measure is an RSRP measure, and the first threshold corresponds to a first priority and/or a second priority, where the first priority is a priority used in LTE-V resource selection or reselection, and the second priority is a priority indicated in the side control information SCI.

It should be understood that SCI is control information carried in PSCCH, and in LTE-V SCI may also be understood or replaced by SA.

It is understood that the Priority may be a Priority in LTE-V transmission (PPPP), or a Priority in NR-V transmission.

In some implementations, the energy measure is one of an RSSI measure, a CQI measure, an SINR measure, an SNR measure, the first threshold being preset or configured.

The RSSI measurement is a linear average of the total received power over each symbol in the configured sub-channel in the symbols used to transmit the PSSCH (e.g., carrying data).

Alternatively, the energy measurement may be an RSRP measurement and a RSSI measurement.

The terminal device can improve the reliability and flexibility of the communication method by determining different energy measurement values.

According to the scheme, the resources occupied by LTE-V transmission are determined not to overlap with the second resources, so that NR-V data is sent on the third resources corresponding to the second resources, co-channel coexistence can be realized on the premise of not influencing LTE-V performance, namely feedback information corresponding to the NR-V data is sent on the premise of not influencing LTE-V performance, and NR-V performance is guaranteed.

In a sixth aspect, a method of side-link communication is provided, the method comprising: acquiring first indication information, wherein the first indication information is used for indicating first resources, the first resources are resources occupied by LTE-V transmission, and the first resources belong to a first resource set; determining a second resource according to a third resource, wherein the third resource is a candidate resource for sending NR-V data, the second resource is a resource for bearing feedback information corresponding to the NR-V data, and the second resource belongs to the first resource set; according to the candidate resource for LTE-V transmission, determining that the resource occupied by LTE-V transmission and the second resource are not overlapped; the NR-V data is transmitted on the third resource.

Alternatively, the method comprises: acquiring first indication information, wherein the first indication information is used for indicating first resources, the first resources are candidate resources for LTE-V transmission, and the first resources belong to a first resource set; and sending NR-V data on a third resource, wherein a second resource corresponding to the third resource is not overlapped with the resource occupied by the LTE-V transmission, the second resource is used for bearing feedback information corresponding to the NR-V data, and the second resource belongs to the first resource set.

According to the scheme, the resources occupied by LTE-V transmission are determined not to overlap with the second resources, so that NR-V data is sent by using the third resources corresponding to the second resources, co-channel coexistence can be realized on the premise of not influencing LTE-V performance, namely feedback information corresponding to the NR-V data is sent on the premise of not influencing LTE-V performance, and NR-V performance is guaranteed.

It should be understood that the NR-V data is data transmitted using an NR wireless access system, and feedback information corresponding to the NR-V data is feedback information transmitted using the NR wireless access system. The candidate resource for LTE-V transmission may be understood as a single subframe candidate resource or a single candidate resource or a candidate subframe resource.

It should be understood that the NR-V data is transmitted on the third resource, which may be understood as the NR-V data is transmitted by selecting the third resource in the resource selection process, or the NR-V data is transmitted by using the third resource after the resource selection process is completed.

It will be appreciated that the second resource is implicitly associated with the third resource, the terminal device being able to determine the second resource by means of the third resource, or the terminal device being able to determine the third resource by means of the second resource.

In some embodiments, the first indication information is from an LTE-V module of the same terminal, that is, interaction or transparent transmission or transmission between an NR-V module and an LTE-V module included in the same terminal.

In some implementations, the first indication information is from transmissions between other terminals, i.e., different terminals. It should be appreciated that in this case, the first indication information may be the PSSCH, or the second SCI in the PSSCH, or a corresponding field in the second SCI in the PSSCH. It should be appreciated that this first set of resources is a set of shared resources, i.e. a set of resources shared by NR-V and LTE-V (i.e. for transmission of LTE-V as well as for transmission of NR-V). Or as a set of resources of LTE-V (and shared with NR-V), or as a portion where the set of LTE-V resources and the set of NE-V resources overlap.

The method provided by the sixth aspect may be performed by the first terminal, with reference to the sixth aspect, and in some implementations of the sixth aspect, the first resource may be determined by an LTE-V module of the first terminal. The first terminal or the NR-V module of the terminal can acquire the indication information of the first resource through the LTE-V module.

The method provided by the sixth aspect may be performed by the first terminal, with reference to the sixth aspect, and in some implementations of the sixth aspect, the first resource may be determined by an LTE-V module of the second terminal. The first terminal or an NR-V module of the first terminal receives the indication information of the first resource of the second terminal device.

The terminal equipment can improve the reliability and flexibility of the communication method by acquiring the first resource. The NR-V is guaranteed to use the resource pool of LTE-V without affecting the LTE-V transmission.

With reference to the sixth aspect, in some implementations of the sixth aspect, the first resource is a remaining candidate resource in the second resource set excluding candidate resources overlapping with resources occupied by LTE-V transmission, and the second resource set is a resource set in a resource selection window corresponding to LTE-V transmission. Due to the influence of the PSFCH AGC symbol, the NR-V module determines a candidate resource set according to the reserved resource of the LTE-V, so that the transmission on the PSFCH AGC symbol can be ensured to the greatest extent not to influence the transmission of the LTE-V.

It should be appreciated that the resource selection window is a time window, or a time period, or a set of subframes, or a set of time slots.

With reference to the sixth aspect, in some implementations of the sixth aspect, the first resource is a remaining candidate resource in the second resource set excluding a candidate resource overlapping with a resource occupied by LTE-V transmission, and the energy measurement value corresponding to the first resource is not higher than a first threshold. By considering the energy measurement value in the process of determining the first resource, the resource with lower LTE-V energy measurement value can be utilized, the resource utilization efficiency is improved, and the transmission of LTE-V is not affected.

With reference to the sixth aspect, in some implementations of the sixth aspect, feedback information corresponding to the NR-V data is carried in a PSFCH, and PSFCH resources are periodically configured in a shared resource pool. The shared resource pool may be understood as the first set of resources.

With reference to the sixth aspect, in some implementations of the sixth aspect, feedback information corresponding to the NR-V data is carried in a PSFCH, and PSFCH resources are periodically configured in a NR-V resource pool, where the NR-V resource pool includes the first resource set. That is, the resource pool of the NR-V may be the first set of resources, or the resource pool of the NR-V may comprise the first set of resources and a set of resources dedicated to NR-V. If the second resource is located in a resource set dedicated to NR-V, feedback information corresponding to the NR-V data is sent on the second resource.

With reference to the sixth aspect, in some implementations of the sixth aspect, the determining that the resource occupied by the LTE-V transmission and the second resource do not overlap according to the candidate resource for the LTE-V transmission, or the second resource does not overlap with the resource occupied by the LTE-V transmission includes: determining that the resources occupied by the LTE-V transmission and the second resources do not overlap in the time domain when at least one of the following conditions is met:

In some implementations, the second resource belongs to the first resource, and a fourth resource does not overlap with the second resource in a time domain, where the fourth resource is at least one candidate resource included in the first time domain unit excluding remaining candidate resources of the first resource, and the first time domain unit is a time domain unit in which the second resource is located.

In some implementations, the second resource belongs to the first resource, and the number of candidate resources included in the first time domain unit is equal to a second threshold, the second threshold being a maximum number of candidate resources included in the first time domain unit; or alternatively

In some implementations, the fourth resource does not overlap with the second resource in the time domain.

In some implementations, the number of fourth resources is 0.

In some implementations, the number of candidate resources included by the first time domain unit is equal to a second threshold.

In some implementations, any one of the candidate resources is not excluded from the first time unit. It should be understood that the number of the fourth resources is 0, which may be understood that any candidate resource is not excluded from the first time domain unit, or the number of candidate resources excluded from the first time domain unit is 0.

It is to be understood that the time domain unit may be understood as a subframe in LTE-V and as a slot in NR-V.

It should be appreciated that by determining that the first resource overlaps with the second resource, and thus that the resources occupied by the LTE-V transmission do not overlap with the second resource, i.e. no candidate resources are excluded in the first time unit, there is no transmission of LTE-V in the time unit, i.e. the transmission of PSFCH has no effect on the transmission of LTE-V. The method can ensure that NR-V and LTE-V can realize dynamic coexistence of co-channel transmission on the premise of not influencing LTE-V performance, and simultaneously ensure NR-V performance on the premise of not influencing LTE-V performance.

With reference to the sixth aspect, in certain implementations of the sixth aspect, the energy measure is an RSRP measure, and the first threshold corresponds to a first priority and/or a second priority, where the first priority is a priority used in LTE-V resource selection or reselection, and the second priority is a priority indicated in the side control information SCI.

It should be understood that SCI is control information carried in PSCCH, and in LTE-V SCI may also be understood or replaced by SA.

It is understood that the Priority may be a Priority in LTE-V transmission (PPPP), or a Priority in NR-V transmission.

In some implementations, the energy measure is one of an RSSI measure, a CQI measure, an SINR measure, an SNR measure, the first threshold being preset or configured. The terminal device can improve the reliability and flexibility of the communication method by determining different energy measurement values.

The RSSI measurement is a linear average of the total received power over each symbol in the configured sub-channel in the symbols used to transmit the PSSCH (e.g., carrying data).

In some implementations, the energy measurement may be an RSRP measurement and a measurement of RSSI.

With reference to the sixth aspect, in some implementations of the sixth aspect, the determining, according to the first indication information, that the resources occupied by the LTE-V transmission and the second resources do not overlap includes: determining that the time domain range of the first resource includes the time domain resource of the second resource.

According to the scheme, the resources occupied by LTE-V transmission are determined not to overlap with the second resources, so that NR-V data is sent by using the third resources corresponding to the second resources, co-channel coexistence can be realized on the premise of not influencing LTE-V performance, namely feedback information corresponding to the NR-V data is sent on the premise of not influencing LTE-V performance, and NR-V performance is guaranteed.

In a seventh aspect, a method of side-link communication is provided, the method comprising: acquiring first indication information, wherein the first indication information is used for indicating first resources, the first resources are resources occupied by LTE-V transmission, and the first resources belong to a first resource set; according to the resources occupied by the LTE-V transmission, determining that the resources occupied by the LTE-V transmission overlap with second resources, wherein the second resources are used for bearing feedback information corresponding to NR-V data, and the second resources belong to the first resource set; and not transmitting feedback information corresponding to the NR-V data on the second resource.

Alternatively, the method comprises: acquiring first indication information, wherein the first indication information is used for indicating first resources, the first resources are resources occupied by LTE-V transmission, or the first resources are candidate resources for LTE-V transmission, and the first resources belong to a first resource set; and not sending feedback information corresponding to the NR-V data on a second resource, wherein the second resource is overlapped with the resource occupied by the LTE-V transmission, and the second resource belongs to the first resource set.

According to the scheme, the resources occupied by the LTE-V transmission are overlapped with the second resources, so that feedback information corresponding to the NR-V data is not sent on the second resources, and the dynamic coexistence of the NR-V and the LTE-V can be ensured to be realized on the premise of not affecting the LTE-V performance.

It should be understood that the NR-V data is data transmitted using an NR wireless access system, and feedback information corresponding to the NR-V data is feedback information transmitted using the NR wireless access system.

In some embodiments, the first indication information is from an LTE-V module of the same terminal, that is, interaction or transparent transmission or transmission between an NR-V module and an LTE-V module included in the same terminal.

In some implementations, the first indication information is from transmissions between other terminals, i.e., different terminals. It should be appreciated that in this case, the first indication information may be the PSSCH, or the second SCI in the PSSCH, or a corresponding field in the second SCI in the PSSCH.

It is to be understood that resources occupied by an LTE-V transmission may be understood as reserved resources of an LTE-V, or reserved resources of an LTE-V transmission, or resources that have been indicated by LTE-V but not used, or resources that have been used by LTE-V and reserved resources.

It should be appreciated that this first set of resources is a set of shared resources, i.e. a set of resources shared by NR-V and LTE-V (i.e. for transmission of LTE-V as well as for transmission of NR-V). Or as a set of resources of LTE-V (and shared with NR-V), or as a portion where the set of LTE-V resources and the set of NE-V resources overlap.

It should be understood that the feedback information corresponding to the non-transmitted NR-V data may be: stopping sending feedback information corresponding to the NR-V data, prohibiting sending feedback information corresponding to the NR-V data, canceling sending feedback information corresponding to the NR-V data, suspending sending feedback information corresponding to the NR-V data, and the like.

The method provided by the seventh aspect may be performed by the first terminal, with reference to the seventh aspect, and in some implementations of the seventh aspect, the first resource may be determined by an LTE-V module of the first terminal. The first terminal or the NR-V module of the terminal can acquire the indication information of the first resource through the LTE-V module.

The method provided by the seventh aspect may be performed by the first terminal, with reference to the seventh aspect, and in some implementations of the seventh aspect, the first resource may be determined by an LTE-V module of the second terminal. The first terminal or an NR-V module of the first terminal receives the indication information of the first resource of the second terminal device.

The terminal equipment can improve the reliability and flexibility of the communication method by acquiring the first resource. The NR-V is guaranteed to use the resource pool of LTE-V without affecting the LTE-V transmission.

With reference to the seventh aspect, in some implementations of the seventh aspect, the first resource is a resource occupied by LTE-V transmission, and an energy measurement corresponding to the first resource is greater than a first threshold. By considering the energy measurement value in the process of determining the first resource, the resource with lower LTE-V energy measurement value can be utilized, the resource utilization efficiency is improved, and the transmission of LTE-V is not affected.

With reference to the seventh aspect, in some implementations of the seventh aspect, feedback information corresponding to the NR-V data is carried in a PSFCH, and PSFCH resources are periodically configured in a shared resource pool. The shared resource pool may be understood as the first set of resources.

With reference to the seventh aspect, in some implementations of the first aspect, feedback information corresponding to the NR-V data is carried in a PSFCH, and PSFCH resources are periodically configured in a NR-V resource pool, where the NR-V resource pool includes the first resource set. That is, the resource pool of the NR-V may be the first set of resources, or the resource pool of the NR-V may comprise the first set of resources and a set of resources dedicated to NR-V. If the second resource is located in a resource set dedicated to NR-V, feedback information corresponding to the NR-V data is sent on the second resource.

With reference to the seventh aspect, in some implementations of the seventh aspect, the determining, according to the first indication information, that the resource occupied by the LTE-V transmission overlaps with the second resource, or that the second resource overlaps with the resource occupied by the LTE-V transmission includes: the first resource and the second resource overlap in the time domain. I.e. the first resource is any one of a set of resources occupied by LTE-V transmissions, the first resource and the second resource overlap in the time domain, i.e. the second resource and the resources occupied by LTE-V transmissions overlap in the time domain. Therefore, the NR-V and the LTE-V can be ensured to realize dynamic coexistence of co-channel transmission on the premise of not affecting the performance of the LTE-V.

With reference to the seventh aspect, in certain implementations of the seventh aspect, the energy measure is an RSRP measure, and the first threshold corresponds to a first priority and/or a second priority, where the first priority is a priority used in LTE-V resource selection or reselection, and the second priority is a priority indicated in the side control information SCI.

It should be understood that SCI is control information carried in PSCCH, and in LTE-V SCI may also be understood or replaced by SA.

It is understood that the Priority may be a Priority in LTE-V transmission (PPPP), or a Priority in NR-V transmission.

In some implementations, the energy measure is one of an RSSI measure, a CQI measure, an SINR measure, an SNR measure, the first threshold being preset or configured.

The RSSI measurement is a linear average of the total received power over each symbol in the configured sub-channel in the symbols used to transmit the PSSCH (e.g., carrying data).

In some implementations, the energy measurement may be an RSRP measurement and a measurement of RSSI.

The terminal device can improve the reliability and flexibility of the communication method by determining different energy measurement values.

With reference to the seventh aspect, in some implementations of the seventh aspect, according to the first indication information, determining that a resource occupied by the LTE-V transmission overlaps with a second resource, or that the second resource overlaps with a resource occupied by the LTE-V transmission includes: and determining that the time domain range of the first resource does not comprise the time domain resource of the second resource, and not transmitting feedback information corresponding to the NR-V data, so that the co-channel coexistence can be realized on the premise of not influencing the LTE-V performance. In the scheme, whether the PSFCH resource affects the transmission of the LTE-V cannot be determined, so that in order to avoid potential influence, the PSFCH is determined not to be transmitted, and the transmission of the NR-V is ensured not to affect the transmission of the LTE-V to the maximum extent.

Based on the technical scheme, according to the judgment that the resources occupied by LTE-V transmission and the resources of feedback information corresponding to NR-V data overlap in the time domain and feedback information is not sent, the dynamic coexistence of the common channel transmission can be realized on the premise that the performance of LTE-V is not influenced by NR-V and LTE-V.

In an eighth aspect, there is provided a method of side-link communication, the method comprising: acquiring first indication information, wherein the first indication information is used for indicating first resources, the first resources are candidate resources for LTE-V transmission, and the first resources belong to a first resource set; according to the candidate resource for LTE-V transmission, determining that the resource occupied by LTE-V transmission overlaps with a second resource, wherein the second resource is used for bearing feedback information corresponding to NR-V data, and the second resource belongs to the first resource set; and not transmitting feedback information corresponding to the NR-V data on the second resource.

Alternatively, the method comprises: acquiring first indication information, wherein the first indication information is used for indicating first resources, the first resources are resources occupied by LTE-V transmission, or the first resources are candidate resources for LTE-V transmission, and the first resources belong to a first resource set; and not sending feedback information corresponding to the NR-V data on a second resource, wherein the second resource is overlapped with the resource occupied by the LTE-V transmission, and the second resource belongs to the first resource set.

According to the scheme, the resources occupied by the LTE-V transmission are overlapped with the second resources, so that feedback information corresponding to the NR-V data is not sent on the second resources, and the dynamic coexistence of the NR-V and the LTE-V can be ensured to be realized on the premise of not affecting the LTE-V performance.

It should be understood that the NR-V data is data transmitted using an NR wireless access system, and feedback information corresponding to the NR-V data is feedback information transmitted using the NR wireless access system. The candidate resource for LTE-V transmission may be understood as a single subframe candidate resource or a single candidate resource or a candidate subframe resource.

In some embodiments, the first indication information is from an LTE-V module of the same terminal, that is, interaction or transparent transmission or transmission between an NR-V module and an LTE-V module included in the same terminal.

In some implementations, the first indication information is from transmissions between other terminals, i.e., different terminals. It should be appreciated that in this case, the first indication information may be the PSSCH, or the second SCI in the PSSCH, or a corresponding field in the second SCI in the PSSCH.

It should be appreciated that this first set of resources is a set of shared resources, i.e. a set of resources shared by NR-V and LTE-V (i.e. for transmission of LTE-V as well as for transmission of NR-V). Or as a set of resources of LTE-V (and shared with NR-V), or as a portion where the set of LTE-V resources and the set of NE-V resources overlap.

It should be understood that the feedback information corresponding to the non-transmitted NR-V data may be: stopping sending feedback information corresponding to the NR-V data, prohibiting sending feedback information corresponding to the NR-V data, canceling sending feedback information corresponding to the NR-V data, suspending sending feedback information corresponding to the NR-V data, and the like.

Wherein the method provided by the eighth aspect may be performed by the first terminal, with reference to the eighth aspect, in certain implementations of the eighth aspect, the first resource may be determined by an LTE-V module of the first terminal. The first terminal or the NR-V module of the terminal can acquire the indication information of the first resource through the LTE-V module.

Wherein the method provided by the eighth aspect may be performed by a first terminal, with reference to the eighth aspect, in certain implementations of the eighth aspect, the first resource may be determined by an LTE-V module of a second terminal. The first terminal or an NR-V module of the first terminal receives the indication information of the first resource of the second terminal device.

The terminal equipment can improve the reliability and flexibility of the communication method by acquiring the first resource. The NR-V is guaranteed to use the resource pool of LTE-V without affecting the LTE-V transmission.

With reference to the eighth aspect, in some implementations of the eighth aspect, the first resource is a remaining candidate resource in a second resource set excluding candidate resources overlapping with resources occupied by LTE-V transmission, the second resource set belongs to the first resource set, and the second resource set is a resource set in a resource selection window corresponding to LTE-V transmission. Due to the influence of the PSFCH AGC symbol, the NR-V module determines a candidate resource set according to the reserved resource of the LTE-V, so that the transmission on the PSFCH AGC symbol can be ensured to the greatest extent not to influence the transmission of the LTE-V.

It should be appreciated that the resource selection window is a time window, or a time period, or a set of subframes, or a set of time slots.

With reference to the eighth aspect, in some implementations of the eighth aspect, the first resource is a remaining candidate resource in the second resource set excluding a candidate resource overlapping with a resource occupied by LTE-V transmission, and the energy measurement value corresponding to the first resource is not higher than a first threshold. By considering the energy measurement value in the process of determining the first resource, the resource with lower LTE-V energy measurement value can be utilized, the resource utilization efficiency is improved, and the transmission of LTE-V is not affected.

With reference to the eighth aspect, in some implementations of the eighth aspect, feedback information corresponding to the NR-V data is carried in a PSFCH, and PSFCH resources are periodically configured in a shared resource pool. The shared resource pool may be understood as the first set of resources.

With reference to the eighth aspect, in some implementations of the eighth aspect, feedback information corresponding to the NR-V data is carried in a PSFCH, and PSFCH resources are periodically configured in a NR-V resource pool, where the NR-V resource pool includes the first resource set. That is, the resource pool of the NR-V may be the first set of resources, or the resource pool of the NR-V may comprise the first set of resources and a set of resources dedicated to NR-V. If the second resource is located in a resource set dedicated to NR-V, feedback information corresponding to the NR-V data is sent on the second resource.

With reference to the eighth aspect, in some implementations of the eighth aspect, the determining that the resource occupied by the LTE-V transmission overlaps with the second resource according to the candidate resource for the LTE-V transmission, or that the second resource overlaps with the resource occupied by the LTE-V transmission includes: determining that the resources occupied by the LTE-V transmission and the second resources overlap in the time domain when at least one of the following conditions is met:

In some implementations, the second resource does not belong to the first resource.

In some implementations, the fourth resource overlaps the second resource in the time domain, where the fourth resource is a remaining candidate resource excluding the first resource from at least one candidate resource included in the first time unit, and the first time unit is a time unit in which the second resource is located.

In some implementations, the number of candidate resources included in the first time unit is less than a second threshold, the second threshold being a maximum number of candidate resources included in the first time unit.

In some implementations, the number of fourth resources is not 0.

In some implementations, candidate resources are excluded from the first time unit.

It should be understood that the number of the fourth resources is not 0, and it is understood that the candidate resources are excluded from the first time domain unit, or the number of the candidate resources excluded from the first time domain unit is not 0.

It is to be understood that the time domain unit may be understood as a subframe in LTE-V and as a slot in NR-V.

By determining that the first resource and the second resource do not overlap, it is determined that the resource occupied by LTE-V transmission overlaps with the second resource, i.e. candidate resources are excluded in the first time unit, and there is LTE-V transmission in the time unit, i.e. PSFCH transmission has an effect on LTE-V transmission. The dynamic coexistence of the co-channel transmission can be ensured by NR-V and LTE-V on the premise of not influencing the performance of LTE-V.

With reference to the eighth aspect, in certain implementations of the eighth aspect, the energy measure is an RSRP measure, and the first threshold corresponds to a first priority and/or a second priority, where the first priority is a priority used in LTE-V resource selection or reselection, and the second priority is a priority indicated in the side control information SCI.

It should be understood that SCI is control information carried in PSCCH, and in LTE-V SCI may also be understood or replaced by SA.

It is understood that the Priority may be a Priority in LTE-V transmission (PPPP), or a Priority in NR-V transmission.

In some implementations, the energy measure is one of an RSSI measure, a CQI measure, an SINR measure, an SNR measure, the first threshold being preset or configured.

The RSSI measurement is a linear average of the total received power over each symbol in the configured sub-channel in the symbols used to transmit the PSSCH (e.g., carrying data).

In some implementations, the energy measurement may be an RSRP measurement and a measurement of RSSI.

The terminal device can improve the reliability and flexibility of the communication method by determining different energy measurement values.

With reference to the eighth aspect, in some implementations of the eighth aspect, determining, according to the first indication information, that resources occupied by LTE-V transmission overlap with second resources, or that the second resources overlap with resources occupied by the LTE-V transmission includes: and determining that the time domain range of the first resource does not comprise the time domain resource of the second resource, and not transmitting feedback information corresponding to the NR-V data, so that the co-channel coexistence can be realized on the premise of not influencing the LTE-V performance. .

Based on the technical scheme, according to the judgment that the resources occupied by LTE-V transmission and the resources of feedback information corresponding to NR-V data overlap in the time domain and feedback information is not sent, the dynamic coexistence of the common channel transmission can be realized on the premise that the performance of LTE-V is not influenced by NR-V and LTE-V.

In a ninth aspect, there is provided a side-link communication method, the method comprising: acquiring first indication information, wherein the first indication information is used for indicating first resources, the first resources are resources occupied by LTE-V transmission, and the first resources belong to a first resource set; determining a second resource according to a third resource, wherein the third resource is a candidate resource for sending NR-V data, the second resource is a resource for bearing feedback information corresponding to the NR-V data, and the second resource belongs to the first resource set; according to the resources occupied by the LTE-V transmission, determining that the resources occupied by the LTE-V transmission are not overlapped with the second resources; and sending third indication information, wherein the third indication information is used for indicating to enable the hybrid automatic repeat request (HARQ) corresponding to the NR-V data, and the HARQ is feedback information on the bearing second resource.

Alternatively, the method comprises: acquiring first indication information, wherein the first indication information is used for indicating first resources, the first resources are resources occupied by LTE-V transmission, and the first resources belong to a first resource set; and sending third indication information, wherein the third indication information is used for indicating to enable the hybrid automatic repeat request (HARQ) corresponding to the NR-V data, the HARQ is feedback information carried on a second resource, and the second resource is overlapped with the resource occupied by the LTE-V transmission.

According to the scheme, the resource occupied by LTE-V transmission is overlapped with the second resource, so that HARQ information corresponding to NR-V data is enabled, and co-channel coexistence can be realized on the premise of not affecting LTE-V performance.

It should be understood that the NR-V data is data transmitted using an NR wireless access system, and feedback information corresponding to the NR-V data is feedback information transmitted using the NR wireless access system.

In some embodiments, the first indication information is from an LTE-V module of the same terminal, that is, interaction or transparent transmission or transmission between an NR-V module and an LTE-V module included in the same terminal.

In some implementations, the first indication information is from transmissions between other terminals, i.e., different terminals. It should be appreciated that in this case, the first indication information may be the PSSCH, or the second SCI in the PSSCH, or a corresponding field in the second SCI in the PSSCH.

It should be appreciated that the third indication information may be the PSSCH, or a second SCI in the PSSCH, or a corresponding field in the second SCI in the PSSCH. Or an "indication enable/disable HARQ" field in the second stage SCI.

It is to be understood that resources occupied by an LTE-V transmission may be understood as reserved resources of an LTE-V, or reserved resources of an LTE-V transmission, or resources that have been indicated by LTE-V but not used, or resources that have been used by LTE-V and reserved resources.

It should be appreciated that this first set of resources is a set of shared resources, i.e. a set of resources shared by NR-V and LTE-V (i.e. for transmission of LTE-V as well as for transmission of NR-V). Or as a set of resources of LTE-V (and shared with NR-V), or as a portion where the set of LTE-V resources and the set of NE-V resources overlap.

Wherein the method provided by the ninth aspect may be performed by the first terminal, with reference to the ninth aspect, and in some implementations of the ninth aspect, the first resource may be determined by an LTE-V module of the first terminal. The first terminal or the NR-V module of the terminal can acquire the indication information of the first resource through the LTE-V module.

Wherein the method provided by the ninth aspect may be performed by a first terminal, with reference to the ninth aspect, in certain implementations of the ninth aspect, the first resource may be determined by an LTE-V module of a second terminal. The first terminal or an NR-V module of the first terminal receives the indication information of the first resource of the second terminal device.

The terminal equipment can improve the reliability and flexibility of the communication method by acquiring the first resource. The NR-V is guaranteed to use the resource pool of LTE-V without affecting the LTE-V transmission. With reference to the ninth aspect, in some implementations of the ninth aspect, the first resource is a resource occupied by LTE-V transmission, and an energy measurement corresponding to the first resource is greater than a first threshold. By considering the energy measurement value in the process of determining the first resource, the resource with lower LTE-V energy measurement value can be utilized, the resource utilization efficiency is improved, and the transmission of LTE-V is not affected.

With reference to the ninth aspect, in some implementations of the ninth aspect, feedback information corresponding to the NR-V data is carried in a PSFCH, and PSFCH resources are periodically configured in a shared resource pool. The shared resource pool may be understood as the first set of resources.

With reference to the ninth aspect, in some implementations of the ninth aspect, feedback information corresponding to the NR-V data is carried in a PSFCH, and PSFCH resources are periodically configured in a NR-V resource pool, where the NR-V resource pool includes the first resource set. That is, the resource pool of the NR-V may be the first set of resources, or the resource pool of the NR-V may comprise the first set of resources and a set of resources dedicated to NR-V. If the second resource is located in a resource set dedicated to NR-V, feedback information corresponding to the NR-V data is sent on the second resource.

With reference to the ninth aspect, in some implementations of the ninth aspect, the determining that the resources occupied by the LTE-V transmission overlap with the second resources according to the resources occupied by the LTE-V transmission, or that the second resources overlap with the resources occupied by the LTE-V transmission includes: the first resource and the second resource overlap in the time domain. I.e. the first resource is any one of a set of resources occupied by LTE-V transmissions, the first resource and the second resource overlap in the time domain, i.e. the second resource and the resources occupied by LTE-V transmissions overlap in the time domain. Therefore, the NR-V and the LTE-V can be ensured to realize dynamic coexistence of co-channel transmission on the premise of not affecting the performance of the LTE-V.

With reference to the ninth aspect, in certain implementations of the ninth aspect, the energy measure is an RSRP measure, and the first threshold corresponds to a first priority and/or a second priority, where the first priority is a priority used in LTE-V resource selection or reselection, and the second priority is a priority indicated in the side control information SCI.

It should be understood that SCI is control information carried in PSCCH, and in LTE-V SCI may also be understood or replaced by SA.

It is understood that the Priority may be a Priority in LTE-V transmission (PPPP), or a Priority in NR-V transmission.

In some implementations, the energy measure is one of an RSSI measure, a CQI measure, an SINR measure, an SNR measure, the first threshold being preset or configured.

The RSSI measurement is a linear average of the total received power over each symbol in the configured sub-channel in the symbols used to transmit the PSSCH (e.g., carrying data).

Alternatively, the energy measurement may be an RSRP measurement and a RSSI measurement.

The terminal device can improve the reliability and flexibility of the communication method by determining different energy measurement values.

With reference to the ninth aspect, in some implementations of the ninth aspect, according to the first indication information, determining that a resource occupied by the LTE-V transmission overlaps with a second resource, or that the second resource does not overlap with a resource occupied by the LTE-V transmission includes: and determining that the time domain range of the first resource does not comprise the time domain resource of the second resource, and not transmitting feedback information corresponding to the NR-V data, so as to avoid potential influence on LTE-V transmission, thereby ensuring that NR-V and LTE-V can realize dynamic coexistence of co-channel transmission on the premise of not influencing LTE-V performance.

According to the scheme, the resource occupied by LTE-V transmission is overlapped with the second resource, so that HARQ information corresponding to NR-V data is enabled, and co-channel coexistence can be realized on the premise of not affecting LTE-V performance.

In a tenth aspect, there is provided a side-link communication method, the method comprising: acquiring first indication information, wherein the first indication information is used for indicating first resources, the first resources are candidate resources for LTE-V transmission, and the first resources belong to a first resource set; determining a second resource according to a third resource, wherein the third resource is a candidate resource for sending NR-V data, the second resource is a resource for bearing feedback information corresponding to the NR-V data, and the second resource belongs to the first resource set; according to the candidate resource for LTE-V transmission, determining that the resource occupied by LTE-V transmission and the second resource are not overlapped; and sending third indication information, wherein the third indication information is used for indicating to enable the hybrid automatic repeat request (HARQ) corresponding to the NR-V data, and the HARQ is feedback information on the bearing second resource.

Alternatively, the method comprises: acquiring first indication information, wherein the first indication information is used for indicating first resources, the first resources are candidate resources for LTE-V transmission, and the first resources belong to a first resource set; and sending third indication information, wherein the third indication information is used for indicating to enable the hybrid automatic repeat request (HARQ) corresponding to the NR-V data, the HARQ is feedback information carried on a second resource, and the second resource is overlapped with the resource occupied by the LTE-V transmission.

According to the scheme, the resource occupied by LTE-V transmission is overlapped with the second resource, so that HARQ information corresponding to NR-V data is enabled, and co-channel coexistence can be realized on the premise of not affecting LTE-V performance.

It should be understood that the NR-V data is data transmitted using an NR wireless access system, and feedback information corresponding to the NR-V data is feedback information transmitted using the NR wireless access system. The candidate resource for LTE-V transmission may be understood as a single subframe candidate resource or a single candidate resource or a candidate subframe resource.

In some embodiments, the first indication information is from an LTE-V module of the same terminal, that is, interaction or transparent transmission or transmission between an NR-V module and an LTE-V module included in the same terminal.

In some implementations, the first indication information is from transmissions between other terminals, i.e., different terminals. It should be appreciated that in this case, the first indication information may be the PSSCH, or the second SCI in the PSSCH, or a corresponding field in the second SCI in the PSSCH.

It should be appreciated that the third indication information may be the PSSCH, or a second SCI in the PSSCH, or a corresponding field in the second SCI in the PSSCH. Or an "indication enable/disable HARQ" field in the second stage SCI.

It should be appreciated that this first set of resources is a set of shared resources, i.e. a set of resources shared by NR-V and LTE-V (i.e. for transmission of LTE-V as well as for transmission of NR-V). Or as a set of resources of LTE-V (and shared with NR-V), or as a portion where the set of LTE-V resources and the set of NE-V resources overlap.

Wherein the method provided by the tenth aspect may be performed by the first terminal, with reference to the tenth aspect, and in some implementations of the tenth aspect, the first resource may be determined by an LTE-V module of the first terminal. The first terminal or the NR-V module of the terminal can acquire the indication information of the first resource through the LTE-V module.

Wherein the method provided by the tenth aspect may be performed by the first terminal, with reference to the tenth aspect, in certain implementations of the tenth aspect, the first resource may be determined by an LTE-V module of the second terminal. The first terminal or an NR-V module of the first terminal receives the indication information of the first resource of the second terminal device.

The terminal equipment can improve the reliability and flexibility of the communication method by acquiring the first resource. The NR-V is guaranteed to use the resource pool of LTE-V without affecting the LTE-V transmission. With reference to the tenth aspect, in some implementations of the tenth aspect, the first resource is a remaining candidate resource in the second resource set excluding candidate resources overlapping with resources occupied by LTE-V transmission, and the second resource set is a resource set in a resource selection window corresponding to LTE-V transmission. Due to the influence of the PSFCH AGC symbol, the NR-V module determines a candidate resource set according to the reserved resource of the LTE-V, so that the transmission on the PSFCH AGC symbol can be ensured to the greatest extent not to influence the transmission of the LTE-V.

It should be appreciated that the resource selection window is a time window, or a time period, or a set of subframes, or a set of time slots.

With reference to the tenth aspect, in some implementations of the tenth aspect, the first resource is a remaining candidate resource in the second resource set excluding a candidate resource overlapping with a resource occupied by LTE-V transmission, and the energy measurement value corresponding to the first resource is not higher than a first threshold. By considering the energy measurement value in the process of determining the first resource, the resource with lower LTE-V energy measurement value can be utilized, the resource utilization efficiency is improved, and the transmission of LTE-V is not affected.

With reference to the tenth aspect, in some implementations of the tenth aspect, feedback information corresponding to the NR-V data is carried in a PSFCH, and PSFCH resources are periodically configured in a shared resource pool. The shared resource pool may be understood as the first set of resources.

With reference to the tenth aspect, in some implementations of the tenth aspect, feedback information corresponding to the NR-V data is carried in a PSFCH, and PSFCH resources are periodically configured in a NR-V resource pool, where the NR-V resource pool includes the first resource set. That is, the resource pool of the NR-V may be the first set of resources, or the resource pool of the NR-V may comprise the first set of resources and a set of resources dedicated to NR-V. If the second resource is located in a resource set dedicated to NR-V, feedback information corresponding to the NR-V data is sent on the second resource.

With reference to the tenth aspect, in some implementations of the tenth aspect, the determining that the resource occupied by the LTE-V transmission overlaps with the second resource according to the candidate resource for the LTE-V transmission, or that the second resource overlaps with the resource occupied by the LTE-V transmission includes: determining that the resources occupied by the LTE-V transmission and the second resources overlap in the time domain when at least one of the following conditions is met:

in some implementations, the second resource does not belong to the first resource.

In some implementations, the fourth resource overlaps the second resource in the time domain, the fourth resource being a remaining candidate resource excluding the first resource from at least one candidate resource included in the first time unit, and the first time slot being a time unit in which the second resource is located.

In some implementations, the number of candidate resources included in the first time unit is less than a second threshold, the second threshold being a maximum number of candidate resources included in the first time unit.

In some implementations, the number of fourth resources is not 0.

In some implementations, candidate resources are excluded from the first time unit.

It should be understood that the number of the fourth resources is not 0, and it is understood that the candidate resources are excluded from the first time domain unit, or the number of the candidate resources excluded from the first time domain unit is not 0.

It is to be understood that the time domain unit may be understood as a subframe in LTE-V and as a slot in NR-V.

By determining that the first resource and the second resource do not overlap, it is determined that the resource occupied by LTE-V transmission overlaps with the second resource, i.e. candidate resources are excluded in the first time unit, and there is LTE-V transmission in the time unit, i.e. PSFCH transmission has an effect on LTE-V transmission. The dynamic coexistence of the co-channel transmission can be ensured by NR-V and LTE-V on the premise of not influencing the performance of LTE-V.

With reference to the tenth aspect, in certain implementations of the tenth aspect, the energy measure is an RSRP measure, and the first threshold corresponds to a first priority and/or a second priority, where the first priority is a priority used in LTE-V resource selection or reselection, and the second priority is a priority indicated in the side control information SCI.

It should be understood that SCI is control information carried in PSCCH, and in LTE-V SCI may also be understood or replaced by SA.

It is understood that the Priority may be a Priority in LTE-V transmission (PPPP), or a Priority in NR-V transmission.

In some implementations, the energy measure is one of an RSSI measure, a CQI measure, an SINR measure, an SNR measure, the first threshold being preset or configured. The RSSI measurement is a linear average of the total received power over each symbol in the configured sub-channel in the symbols used to transmit the PSSCH (e.g., carrying data).

In some implementations, the energy measurement may be an RSRP measurement and a measurement of RSSI.

The terminal device can improve the reliability and flexibility of the communication method by determining different energy measurement values.

According to the scheme, the resource occupied by LTE-V transmission is overlapped with the second resource, so that HARQ information corresponding to NR-V data is enabled, and co-channel coexistence can be realized on the premise of not affecting LTE-V performance.

In an eleventh aspect, there is provided a side-link communication method, the method comprising: acquiring first indication information, wherein the first indication information is used for indicating first resources, the first resources are resources occupied by LTE-V transmission, and the first resources belong to a first resource set; determining a second resource according to a third resource, wherein the third resource is a candidate resource for sending NR-V data, the second resource is a resource for bearing feedback information corresponding to the NR-V data, and the second resource belongs to the first resource set; according to the resources occupied by the LTE-V transmission, determining that the resources occupied by the LTE-V transmission overlap with the second resources; the NR-V data is not transmitted using the third resource.

Alternatively, the method comprises: acquiring first indication information, wherein the first indication information is used for indicating first resources, the first resources are resources occupied by LTE-V transmission, and the first resources belong to a first resource set; and not transmitting NR-V data on a third resource, wherein a second resource corresponding to the third resource overlaps with the resource occupied by the LTE-V transmission, the second resource is used for bearing feedback information corresponding to the NR-V data, and the second resource belongs to the first resource set.

According to the scheme, the resources occupied by LTE-V transmission are overlapped with the second resources, so that NR-V data is not sent on the third resources corresponding to the second resources, and co-channel coexistence can be realized on the premise of not affecting LTE-V performance.

It should be understood that the NR-V data is data transmitted using an NR wireless access system, and feedback information corresponding to the NR-V data is feedback information transmitted using the NR wireless access system.

It should be understood that the NR-V data is not transmitted using the third resource, which may be understood as not being selected to transmit the NR-V data during the resource selection process, or may be understood as not being transmitted using the third resource after the end of the resource selection process.

It will be appreciated that the second resource is implicitly related to the third resource, by which the terminal device can determine the second resource, or by which the terminal device can determine the third resource.

In some embodiments, the first indication information is from an LTE-V module of the same terminal, that is, interaction or transparent transmission or transmission between an NR-V module and an LTE-V module included in the same terminal.

In some implementations, the first indication information is from transmissions between other terminals, i.e., different terminals. It should be appreciated that in this case, the first indication information may be the PSSCH, or the second SCI in the PSSCH, or a corresponding field in the second SCI in the PSSCH.

It should be understood that the NR-V data is data transmitted using an NR wireless access system, and feedback information corresponding to the NR-V data is feedback information transmitted using the NR wireless access system.

It is to be understood that resources occupied by an LTE-V transmission may be understood as reserved resources of an LTE-V, or reserved resources of an LTE-V transmission, or resources that have been indicated by LTE-V but not used, or resources that have been used by LTE-V and reserved resources.

It should be appreciated that this first set of resources is a set of shared resources, i.e. a set of resources shared by NR-V and LTE-V (i.e. for transmission of LTE-V as well as for transmission of NR-V). Or as a set of resources of LTE-V (and shared with NR-V), or as a portion where the set of LTE-V resources and the set of NE-V resources overlap.

Wherein the method provided by the eleventh aspect may be performed by the first terminal, with reference to the eleventh aspect, and in some implementations of the eleventh aspect, the first resource may be determined by an LTE-V module of the first terminal. The first terminal or the NR-V module of the terminal can acquire the indication information of the first resource through the LTE-V module.

Wherein the method provided by the eleventh aspect may be performed by the first terminal, with reference to the eleventh aspect, and in some implementations of the eleventh aspect, the first resource may be determined by an LTE-V module of the second terminal. The first terminal or an NR-V module of the first terminal receives the indication information of the first resource of the second terminal device.

The terminal equipment can improve the reliability and flexibility of the communication method by acquiring the first resource. The NR-V is guaranteed to use the resource pool of LTE-V without affecting the LTE-V transmission. With reference to the eleventh aspect, in some implementations of the eleventh aspect, the first resource is a resource occupied by LTE-V transmission, and an energy measurement corresponding to the first resource is greater than a first threshold. By considering the energy measurement value in the process of determining the first resource, the resource with lower LTE-V energy measurement value can be utilized, the resource utilization efficiency is improved, and the transmission of LTE-V is not affected.

With reference to the eleventh aspect, in some implementations of the eleventh aspect, feedback information corresponding to the NR-V data is carried in a PSFCH, and PSFCH resources are periodically configured in a shared resource pool. The shared resource pool may be understood as the first set of resources.

With reference to the eleventh aspect, in some implementations of the eleventh aspect, feedback information corresponding to the NR-V data is carried in a PSFCH, and PSFCH resources are periodically configured in a NR-V resource pool, where the NR-V resource pool includes the first resource set. That is, the resource pool of the NR-V may be the first set of resources, or the resource pool of the NR-V may comprise the first set of resources and a set of resources dedicated to NR-V. If the second resource is located in a resource set dedicated to NR-V, feedback information corresponding to the NR-V data is sent on the second resource.

With reference to the eleventh aspect, in some implementations of the eleventh aspect, the determining that the resources occupied by the LTE-V transmission overlap with the second resources according to the resources occupied by the LTE-V transmission, or that the second resources overlap with the resources occupied by the LTE-V transmission includes: the first resource and the second resource overlap in the time domain. That is, the first resource is any one resource in the set of resources occupied by the LTE-V transmission, the first resource and the second resource overlap in time domain, that is, the second resource and the resources occupied by the LTE-V transmission overlap in time domain, so that the NR-V and the LTE-V can be ensured to realize dynamic coexistence of co-channel transmission on the premise of not influencing the performance of the LTE-V

With reference to the eleventh aspect, in certain implementations of the eleventh aspect, the energy measure is an RSRP measure, and the first threshold corresponds to a first priority and/or a second priority, where the first priority is a priority used in LTE-V resource selection or reselection, and the second priority is a priority indicated in the side control information SCI.

It should be understood that SCI is control information carried in PSCCH, and in LTE-V SCI may also be understood or replaced by SA.

It is understood that the Priority may be a Priority in LTE-V transmission (PPPP), or a Priority in NR-V transmission.

In some implementations, the energy measure is one of an RSSI measure, a CQI measure, an SINR measure, an SNR measure, the first threshold being preset or configured. The RSSI measurement is a linear average of the total received power over each symbol in the configured sub-channel in the symbols used to transmit the PSSCH (e.g., carrying data).

Alternatively, the energy measurement may be an RSRP measurement and a RSSI measurement.

The terminal device can improve the reliability and flexibility of the communication method by determining different energy measurement values.

According to the scheme, the resources occupied by LTE-V transmission are overlapped with the second resources, so that NR-V data is not sent on the third resources corresponding to the second resources, and co-channel coexistence can be realized on the premise of not affecting LTE-V performance.

In a twelfth aspect, there is provided a side-link communication method, the method comprising: acquiring first indication information, wherein the first indication information is used for indicating first resources, the first resources are candidate resources for LTE-V transmission, and the first resources belong to a first resource set; determining a second resource according to a third resource, wherein the third resource is a candidate resource for sending NR-V data, the second resource is a resource for bearing feedback information corresponding to the NR-V data, and the second resource belongs to the first resource set; according to the candidate resource for LTE-V transmission, determining that the resource occupied by LTE-V transmission and the second resource are not overlapped; the NR-V data is not transmitted using the third resource.

Alternatively, the method comprises: acquiring first indication information, wherein the first indication information is used for indicating first resources, the first resources are candidate resources for LTE-V transmission, and the first resources belong to a first resource set; and not transmitting NR-V data on a third resource, wherein a second resource corresponding to the third resource overlaps with the resource occupied by the LTE-V transmission, the second resource is used for bearing feedback information corresponding to the NR-V data, and the second resource belongs to the first resource set.

According to the scheme, the resources occupied by LTE-V transmission are overlapped with the second resources, so that NR-V data is not sent on the third resources corresponding to the second resources, and co-channel coexistence can be realized on the premise of not affecting LTE-V performance.

It should be understood that the NR-V data is data transmitted using an NR wireless access system, and feedback information corresponding to the NR-V data is feedback information transmitted using the NR wireless access system. The candidate resource for LTE-V transmission may be understood as a single subframe candidate resource or a single candidate resource or a candidate subframe resource.

It should be understood that the NR-V data is not transmitted using the third resource, which may be understood as not being selected to transmit the NR-V data during the resource selection process, or may be understood as not being transmitted using the third resource after the end of the resource selection process.

It will be appreciated that the second resource is implicitly associated with the third resource, the terminal device being able to determine the second resource by means of the third resource, or the terminal device being able to determine the third resource by means of the second resource.

In some embodiments, the first indication information is from an LTE-V module of the same terminal, that is, interaction or transparent transmission or transmission between an NR-V module and an LTE-V module included in the same terminal.

In some implementations, the first indication information is from transmissions between other terminals, i.e., different terminals. It should be appreciated that in this case, the first indication information may be the PSSCH, or the second SCI in the PSSCH, or a corresponding field in the second SCI in the PSSCH.

It should be appreciated that this first set of resources is a set of shared resources, i.e. a set of resources shared by NR-V and LTE-V (i.e. for transmission of LTE-V as well as for transmission of NR-V). Or as a set of resources of LTE-V (and shared with NR-V), or as a portion where the set of LTE-V resources and the set of NE-V resources overlap.

Wherein the method provided by the twelfth aspect may be performed by the first terminal, in combination with the twelfth aspect, and in some implementations of the twelfth aspect, the first resource may be determined by an LTE-V module of the first terminal. The first terminal or the NR-V module of the terminal can acquire the indication information of the first resource through the LTE-V module. The first terminal or an NR-V module of the first terminal receives the indication information of the first resource of the second terminal device.

Wherein the method provided by the twelfth aspect may be performed by the first terminal, in combination with the twelfth aspect, and in some implementations of the twelfth aspect, the first resource may be determined by an LTE-V module of the second terminal.

The terminal equipment can improve the reliability and flexibility of the communication method by acquiring the first resource. The NR-V is guaranteed to use the resource pool of LTE-V without affecting the LTE-V transmission. With reference to the twelfth aspect, in some implementations of the twelfth aspect, the first resource is a remaining candidate resource in the second resource set excluding candidate resources overlapping with resources occupied by LTE-V transmission, and the second resource set is a resource set in a resource selection window corresponding to LTE-V transmission. Due to the influence of the PSFCH AGC symbol, the NR-V module determines a candidate resource set according to the reserved resource of the LTE-V, so that the transmission on the PSFCH AGC symbol can be ensured to the greatest extent not to influence the transmission of the LTE-V.

It should be appreciated that the resource selection window is a time window, or a time period, or a set of subframes, or a set of time slots.

With reference to the twelfth aspect, in some implementations of the twelfth aspect, the first resource is a remaining candidate resource in the second resource set excluding a candidate resource overlapping with a resource occupied by LTE-V transmission, and the energy measurement value corresponding to the first resource is not higher than a first threshold. By considering the energy measurement value in the process of determining the first resource, the resource with lower LTE-V energy measurement value can be utilized, the resource utilization efficiency is improved, and the transmission of LTE-V is not affected.

With reference to the twelfth aspect, in some implementations of the twelfth aspect, feedback information corresponding to the NR-V data is carried in a PSFCH, and PSFCH resources are periodically configured in a shared resource pool. The shared resource pool may be understood as the first set of resources.

With reference to the twelfth aspect, in some implementations of the twelfth aspect, feedback information corresponding to the NR-V data is carried in a PSFCH, and PSFCH resources are periodically configured in a NR-V resource pool, where the NR-V resource pool includes the first resource set. That is, the resource pool of the NR-V may be the first set of resources, or the resource pool of the NR-V may comprise the first set of resources and a set of resources dedicated to NR-V. If the second resource is located in a resource set dedicated to NR-V, feedback information corresponding to the NR-V data is sent on the second resource.

With reference to the twelfth aspect, in some implementations of the twelfth aspect, the determining that the resource occupied by the LTE-V transmission overlaps with the second resource according to the candidate resource for the LTE-V transmission, or that the second resource overlaps with the resource occupied by the LTE-V transmission includes: the determining, according to the candidate resource for LTE-V transmission, that the resource occupied by LTE-V transmission overlaps with the second resource includes: determining that the resources occupied by the LTE-V transmission and the second resources overlap in the time domain when at least one of the following conditions is met:

In some implementations, the second resource does not belong to the first resource.

In some implementations, the fourth resource overlaps the second resource in the time domain, where the fourth resource is a remaining candidate resource excluding the first resource from at least one candidate resource included in the first time unit, and the first time unit is a time unit in which the second resource is located.

In some implementations, the number of candidate resources included in the first time unit is less than a second threshold, the second threshold being a maximum number of candidate resources included in the first time unit.

In some implementations, the number of fourth resources is not 0.

In some implementations, candidate resources are excluded from the first time unit.

It should be understood that the number of the fourth resources is not 0, and it is understood that the candidate resources are excluded from the first time domain unit, or the number of the candidate resources excluded from the first time domain unit is not 0.

It is to be understood that the time domain unit may be understood as a subframe in LTE-V and as a slot in NR-V.

By determining that the first resource and the second resource do not overlap, it is determined that the resource occupied by LTE-V transmission overlaps with the second resource, i.e. candidate resources are excluded in the first time unit, and there is LTE-V transmission in the time unit, i.e. PSFCH transmission has an effect on LTE-V transmission. The dynamic coexistence of the co-channel transmission can be ensured by NR-V and LTE-V on the premise of not influencing the performance of LTE-V.

With reference to the twelfth aspect, in certain implementations of the twelfth aspect, the energy measure is an RSRP measure, and the first threshold corresponds to a first priority and/or a second priority, where the first priority is a priority used in LTE-V resource selection or reselection, and the second priority is a priority indicated in the side control information SCI.

It should be understood that SCI is control information carried in PSCCH, and in LTE-V SCI may also be understood or replaced by SA.

It is understood that the Priority may be a Priority in LTE-V transmission (PPPP), or a Priority in NR-V transmission.

In some implementations, the energy measure is one of an RSSI measure, a CQI measure, an SINR measure, an SNR measure, the first threshold being preset or configured. The RSSI measurement is a linear average of the total received power over each symbol in the configured sub-channel in the symbols used to transmit the PSSCH (e.g., carrying data).

In some implementations, the energy measurement may be an RSRP measurement and a measurement of RSSI.

The terminal device can improve the reliability and flexibility of the communication method by determining different energy measurement values.

According to the scheme, the resources occupied by LTE-V transmission are overlapped with the second resources, so that NR-V data is not sent on the third resources corresponding to the second resources, and co-channel coexistence can be realized on the premise of not affecting LTE-V performance.

In a thirteenth aspect, there is provided a side-link communication device comprising individual modules or units for performing the method in any one of the possible implementations of the first to twelfth aspects.

It should be understood that the side-link communication means may be a terminal device or a module in a terminal device.

In a fourteenth aspect, there is provided a computer program product comprising: a computer program (which may also be referred to as code, or instructions) which, when executed, causes a computer to perform the method of any one of the above first to twelfth aspects and possible implementations of the first to twelfth aspects.

In a fifteenth aspect, there is provided a computer readable medium storing a computer program (which may also be referred to as code, or instructions) which, when run on a computer, causes the computer to perform the method of the first to twelfth aspects and any one of the possible implementations of the first to twelfth aspects.

In a sixteenth aspect, a processing device is provided that includes a processor and a memory. The processor is configured to read instructions stored in the memory and is configured to receive a signal via the receiver and to transmit a signal via the transmitter to perform the method of the first to twelfth aspects and any one of the possible implementations of the first to twelfth aspects.

In one possible implementation, the processor is one or more and the memory is one or more.

In some possible implementations, the memory may be integrated with the processor or may be separate from the processor.

In a specific implementation process, the memory may be a non-transient (non-transitory) memory, for example, a Read Only Memory (ROM), which may be integrated on the same chip as the processor, or may be separately disposed on different chips.

It should be appreciated that the related data interaction process, for example, transmitting the indication information, may be a process of outputting the indication information from the processor, and the receiving the capability information may be a process of receiving the input capability information by the processor. Specifically, the data output by the processing may be output to the transmitter, and the input data received by the processor may be from the receiver. Wherein the transmitter and receiver may be collectively referred to as a transceiver.

The processor in the sixteenth aspect may be a chip, and the processor may be implemented by hardware or software, and when implemented by hardware, the processor may be a logic circuit, an integrated circuit, or the like; when implemented in software, the processor may be a general-purpose processor, implemented by reading software code stored in a memory, which may be integrated in the processor, or may reside outside the processor, and exist separately.

Drawings

Fig. 1 is a schematic diagram of periodically configured PSFCH resources.

Fig. 2 is a schematic diagram of a PSSCH resource and PSFCH resource mapping relationship.

FIG. 3 is a diagram showing how SCI indicates the time-frequency location of resources.

Fig. 4 is a schematic diagram of another way in which SCI indicates the time-frequency location of resources.

Fig. 5 is a schematic diagram of a communication scenario suitable for use in embodiments of the present application.

Fig. 6 is a schematic diagram of frame structures of an NR-V system and an LTE-V system.

Fig. 7 is a schematic flow chart diagram of a side-link communication method 100 provided in an embodiment of the present application.

Fig. 8 is a manner of indicating a resource set according to an embodiment of the present application.

Fig. 9 is another indication manner of resource set provided in an embodiment of the present application.

Fig. 10 is a schematic diagram of NR-V and LTE-V slot units under different SCS provided in an embodiment of the present application.

FIG. 11 is a schematic diagram of a candidate single resource provided by an embodiment of the present application.

Fig. 12 is a schematic diagram of resource time-frequency location out-of-range provided in an embodiment of the present application.

Fig. 13 is a schematic flow chart diagram of a side-link communication method 200 provided in another embodiment of the present application.

Fig. 14 is a schematic flow chart diagram of a side-link communication method 300 provided in another embodiment of the present application.

Detailed Description

The technical solutions in the present application will be described below with reference to the accompanying drawings.

The technical solution of the embodiment of the application can be applied to various communication systems, for example: global system for mobile communications (Global System of Mobile communication, GSM), code division multiple access (Code Division Multiple Access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) systems, general packet Radio service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) systems, LTE frequency division duplex (Frequency Division Duplex, FDD) systems, LTE time division duplex (Time Division Duplex, TDD), universal mobile telecommunications system (Universal Mobile Telecommunication System, UMTS), worldwide interoperability for microwave access (Worldwide Interoperability for Microwave Access, wiMAX) communication systems, future fifth generation (5th Generation,5G) systems or New Radio, NR) systems, and the like.

The technical solutions provided by the embodiments of the present application may also be applied to machine-type communication (machine type communication, MTC), inter-machine communication long term evolution technology (Long Term Evolution-machine, LTE-M), device-to-device (D2D) network, machine-to-machine (machine to machine, M2M) network, internet of things (internet of things, ioT) network, or other networks. The IoT network may include, for example, an internet of vehicles. The communication modes in the internet of vehicles system are generally called as vehicle to other devices (V2X, X may represent anything), for example, the V2X may include: vehicle-to-vehicle (vehicle to vehicle, V2V) communication, vehicle-to-infrastructure (vehicle to infrastructure, V2I) communication, vehicle-to-pedestrian communication (vehicle to pedestrian, V2P) or vehicle-to-network (vehicle to network, V2N) communication, etc.

The terminal device in the embodiments of the present application may refer to a user device (UserEquipment, UE), an access terminal, a user unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a mobile terminal, a vehicle-mounted terminal, an industrial robot, an industrial automation device, a user agent, or a user apparatus. The terminal device may also be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc., as the embodiments of the application are not limited in this respect. For example, the terminal device may be a whole vehicle device, a vehicle, an On Board Unit (OBU), a roadside unit (RSU), a vehicle-mounted communication unit (T-box), a chip or a System On Chip (SOC), etc., and the chip or the SOC may be mounted in the vehicle, the OBU, the RSU, or the T-box.

The network device in the embodiment of the present application may be a device for communicating with a terminal device, where the network device may be a base station (Base Transceiver Station, BTS) in a global system for mobile communications (Global System of Mobile communication, GSM) or code division multiple access (Code Division Multiple Access, CDMA), may also be a base station (NodeB, NB) in a wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, may also be an evolved base station (eNB or eNodeB) in an LTE system, may also be a Road Site Unit (RSU), may also be a wireless controller in a cloud wireless access network (Cloud Radio Access Network, CRAN) scenario, or may be a relay station, an access point, a vehicle device, a wearable device, a network device in a future 5G network, or a network device in a future evolved PLMN network, etc., which is not limited in this application.

In the embodiment of the application, the terminal device or the network device includes a hardware layer, an operating system layer running above the hardware layer, and an application layer running above the operating system layer. The hardware layer includes hardware such as a central processing unit (Central Processing Unit, CPU), a memory management unit (Memory Management Unit, MMU), and a memory (also referred to as a main memory). The operating system may be any one or more computer operating systems that implement business processes through processes (processes), such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer comprises applications such as a browser, an address book, word processing software, instant messaging software and the like. Further, the embodiment of the present application is not particularly limited to the specific structure of the execution body of the method provided in the embodiment of the present application, as long as the communication can be performed by the method provided in the embodiment of the present application by running the program recorded with the code of the method provided in the embodiment of the present application, and for example, the execution body of the method provided in the embodiment of the present application may be a terminal device or a network device, or a functional module in the terminal device or the network device that can call the program and execute the program.

Furthermore, various aspects or features of embodiments of the present application may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used herein encompasses a computer program accessible from any computer-readable device, carrier, or media. For example, computer-readable media may include, but are not limited to: magnetic storage devices (e.g., hard disk, floppy disk, or magnetic tape, etc.), optical disks (e.g., compact Disk (CD), digital versatile disk (Digital Versatile Disc, DVD), etc.), smart cards, and flash Memory devices (e.g., erasable programmable read-Only Memory (EPROM), cards, sticks, key drives, etc.). Additionally, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" can include, without being limited to, wireless channels and various other media capable of storing, containing, and/or carrying instruction(s) and/or data.

In this case, the application program executing the communication method of the embodiment of the present application and the application program for controlling the receiving device to complete the action corresponding to the received data may be different application programs.

In order to facilitate understanding of the embodiments of the present application, first, concepts and technologies related to the embodiments will be briefly described.

The resource:

specifically, time-frequency resources. According to the standard Rel-16/Rel-17 NR protocol, the scheduling granularity of a physical sidelink control channel PSCCH (physical sidelink control channel, PSCCH) or a physical sidelink shared channel (physical sidelink shared channel, PSSCH) is in time domain in one slot and in frequency domain in consecutive one or more sub-channels. The transmitting terminal apparatus may transmit sidelink information on the resource, and may carry signals such as PSCCH, PSSCH, physical sidelink feedback channel (physical sidelink feedback channel, PSFCH), demodulation reference signal (demodulation reference signal, DM-RS), and channel state information reference signal (channel state information reference signal, CSI-RS) on one resource. The PSCCH carries first level side row control information (sidelink control information, SCI), the PSSCH carries second level SCI and/or data, and the PSFCH carries feedback information. Wherein the PSCCH/PSSCH comprises a PSCCH and/or a PSSCH.

And (3) a resource pool:

a resource pool is a collection of time-frequency resources. Specifically, the resource pool refers to a set of time-frequency resources used by the UE to transmit or receive PSSCH in the side uplink. The resource pool contains contiguous frequency domain resources. The time domain resources contained in the resource pool can be continuous or discontinuous. The UE may be configured with one or more resource pools, it being understood that the same resource pool can be used for the LTEV transmission and the NRV transmission in embodiments of the present application.

HARQ technique

In a wireless communication system, a hybrid automatic repeat request (hybrid automatic repeat request, HARQ) technology is generally adopted at both sides of a transceiver to ensure the accuracy of data transmission. HARQ techniques combine forward error correction (forward error correction, FEC) with automatic repeat request (automatic repeat request, ARQ), and after a data block (commonly referred to as a Transport Block (TB)) has been encoded, information bits and a portion of the redundancy bits are sent for the first transmission. If the receiving end can decode correctly, an ACK (acknowledgement) signal is fed back to the transmitting end, and after the transmitting end receives the ACK signal, the receiving end confirms that the corresponding information bit has been received successfully, and considers that the data block has been transmitted successfully. If the receiving end cannot decode correctly, the receiving end feeds back a negative acknowledgement (negative acknowledgement, NACK) signal to the transmitting end, and the transmitting end further transmits a part of information bits and/or redundant bits (called retransmission data) to the receiving end after receiving the NACK signal, and the receiving end decodes after combining the retransmission data with the previously received data, and if the retransmission data is still not decoded correctly, retransmission can be performed again. Along with the increase of retransmission times, information bits and/or redundant bits are continuously accumulated, and the channel coding rate is continuously reduced, so that the decoding effect can be continuously improved.

The unicast transmission and the multicast transmission in the NR V2X support HARQ feedback, one unicast receiving end is used for communicating between a pair of UE, the multicast receiving ends are used for transmitting multicast data by a limited number of transmitting UE, and the limited number of intra-group UE receives the data.

The HARQ information is carried in the physical sidelink feedback channel PSFCH.

The unicast supports the feedback mode of ACK or NACK, namely, the ACK is fed back when the UE successfully receives the data, and the NACK is fed back when the UE does not successfully receive the data.

Physical Sidelink Control Channel (PSCCH):

the PSCCH carries a first order SCI. For ease of description, PSCCH and SCI are meant to be the same unless otherwise indicated. In the time domain, the PSCCH occupies two or three Orthogonal Frequency Division Multiplexing (OFDM) symbols starting from the second sideline symbol; in the frequency domain, the physical resource blocks (physical resource blocks, PRBs) carrying the PSCCHs start from the lowest PRB of the lowest subchannel of the associated PSCCHs, and the number of PRBs occupied by the PSCCHs is within the subband range of one pscsch. The PSCCH consists of {10,12,15,20,25} Resource Blocks (RBs), with specific values indicated by radio resource control (reference signal received power, RRC) signaling or preconfigured.

Physical Sidelink Shared Channel (PSSCH):

The PSSCH carries at least 2 of a second order SCI, a media access control-control element (MAC CE), and data. SCI may refer to first order SCI and/or second order SCI. For convenience of description, SCI refers to any one of first-order SCI, second-order SCI, first-order SCI, and second-order SCI when distinction is not made. In the time domain, on the resources without PSFCH, there are 12 symbols for carrying the PSSCH; on the resources with PSFCH, there are 9 symbols for carrying the PSSCH. On the frequency domain, occupy the continuous L _subCh Sub-channels. In addition, in one slot, the first OFDM symbol replicates information transmitted on the second symbol for automatic gain control (automatic gain control, AGC).

Physical Sidelink Feedback Channel (PSFCH):

the PSFCH resource means a resource for transmitting the PSFCH. As an example, one PSFCH occupies 2 consecutive orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM symbols) in the time domain, the frequency domain being 1 physical resource block (physical resource block, PRB). On resources with PSFCH, the penultimate and third OFDM symbols carry PSFCH. The signal on the third last symbol is a repetition of the signal on the second last symbol so that the receiving terminal device makes AGC adjustments.

As one possible scenario, the PSFCH may be used to transmit feedback information. For example, for one PSSCH transmission, if the transmitting end carries hybrid automatic repeat request acknowledgement (hybrid automatic repeat requestacknowledgment, HARQ-ACK) feedback enabling information in the control information, the receiving end may feedback corresponding Acknowledgement (ACK) or negative (negative acknowledgement, NACK) information according to the decoding result of the PSSCH. Wherein ACK or NACK information is transmitted over the PSFCH.

GAP symbol:

the terminal device may receive and transmit the PSSCH in two consecutive slots, respectively, or the terminal device may receive and transmit the PSSCH and the PSFCH in the same slot, respectively. Therefore, an additional symbol is required for the transmit/receive conversion of the terminal apparatus after the PSSCH and after the PSFCH symbol.

AGC symbol:

the symbol is located at the beginning of the transmission, e.g., symbol #0 of the PSCCH/PSSCH transmission, e.g., symbol #11 of the PSFCH transmission. Since the AGC adjustment cannot be performed while receiving and decoding data. The signal on the AGC symbol is thus a replica of the signal content on the next symbol. Since the SL transmission keeps the power on each symbol equal, the content of the remaining symbols can be received based on the results of the automatic gain control of the AGC symbols.

Determining PSFCH resources

(1) Configuration period of PSFCH resource

The PSFCH resource may be a periodic resource configured in a resource pool. For example, assume that the period parameter isAs an example, a->The values of (2) may be 0, 1, 2, 4. If->It indicates that there are no PSFCH resources in the resource pool, i.e., the resources in the resource pool are not available for transmission of PSFCH. If->Then it is indicated that the resource pool is within a time windowEvery->There will be one PSFCH resource per slot.

Fig. 1 is a schematic diagram of a PSFCH resource. The PSFCH resources are periodically configured on the resource pool, the configuration period of the PSFCH resources is N time slots, and when n=4, one time slot in every 4 time slots in the resource pool contains the PSFCH resources. Wherein the PSFCH occupies 1 symbol, which is called PSFCH symbol. The previous symbol of the PSFCH symbol is an AGC symbol, i.e., the previous symbol of the PSFCH symbol is a duplicate of the PSFCH symbol, and the content carried by the previous symbol of the PSFCH symbol and the PSFCH symbol are the same. The previous symbol of the PSFCH symbol is the GP symbol, i.e., the second symbol forward of the PSFCH symbol is the GP symbol. The function of the symbol is to switch between transmission and reception between two transmissions. For example, the UE receives data on symbols 1-9 and transmits PSFCH on symbols 11-12, and the UE needs time for the transmit/receive transition.

(2) Determining time domain resources of PSFCH resources

For NR-V2X, the timing of the HARQ feedback is the PSSCH to PSFCH time interval. Assuming that the end position of one PSSCH transmission is in slot n, the corresponding slot in which HARQ feedback is performed is the first slot in which there is a PSFCH resource, which may also be referred to as a PSFCH transmission opportunity, after the n+k slot and including the n+k slot. Where k represents the processing capability of the terminal, for example, k may be 2 or 3, etc.

(3) Determining frequency domain resources and code domain resources of PSFCH resources

Within a configured resource pool, the frequency domain and code domain resources of the PSFCH are determined using rules of implicit association. The PSFCH available resources in one PSFCH feedback slot are allocated sequentially to each subchannel in the feedback period in a time-first-frequency-domain manner.

Fig. 2 shows an example of a PSSCH resource to PSFCH resource mapping relationship. Assume that the period parameter of the PSFCH resource configuration is 2 (i.e., one slot among every 2 slots contains PSFCH resources), the feedback timing k=2 (minimum time interval from PSSCH to PSFCH), and the number of PSSCH slots corresponding to slot 3 containing PSFCH resources is 2, as shown in (a) of fig. 2. The number of subchannels is 3, each subchannel includes 10 PRBs, the number of PRBs available for transmitting HARQ information is 30, and the number of PRBs configured for transmitting HARQ information is 12. Thus, each subchannel may correspond to 2 physical resource blocks (physical resource block, PRB), e.g., subchannel (0, 0) corresponds to a subchannel index of 0 and slot index of 0, which corresponds to feedback resources with PRB indexes of 0, 1, 2. Each RB also corresponds to a code domain resource, including a CS (Cyclic Shift) pair. The logarithm of CS is related to the length of the sequence. The CS logarithm is at most 6 if the sequence length is 12.

As shown in fig. 2 (b), the CS pairThe frequency domain and code domain resources corresponding to the sub-channel (0, 0) are shown in the above diagram, i.e. one sub-channel corresponds to 6 resources available for transmission HARQ (granularity frequency domain of resources is two PRBs and code domain is one CS pair).

Resources indicated by SCI:

in NR-V, UE uses mode2 resource selection mode to select resource, UE uses first SCI to indicate time-frequency resource. The first level SCI indicates at most 2 resources or 3 resources. This is configured by the network device on the resource pool or pre-configured on the resource pool. The first resource indicated by SCI, the resource that SCI is scheduled to use. The second resource indicated by SCI and the third resource is a reserved resource, i.e. a resource that the UE has not used at the time of SCI indication.

The field indicating the resource in the first level SCI contains two:

a frequency domain resource allocation field which occupies a number of bits when the maximum number of resources indicated by the SCI is 2(maximum 9bits (l=27)); when the maximum number of resources indicated by SCI is 3, the number of bits occupied by this field is +.>(maximum 13 bits (l=27)).

A time domain resource allocation field, which occupies 5bits when the maximum number of resources indicated by the SCI is 2, and occupies 9bits when the maximum number of resources indicated by the SCI is 3.

As described below (maximum number of resources indicated by SCI is 3), the UE is to indicate 3 resources, R1-0 and R1-1 and R1-2. It is necessary to indicate the time slot in which they are located, the frequency domain starting position and the length. The frequency domain resource allocation field functions to indicate the starting position of the resource and the frequency domain length. And the frequency domain length of the resources indicated by the SCI is the same.

The role of the time domain resource allocation field is to indicate the actual logical time interval of 1 or 2 resources when the maximum number of resources indicated by the SCI is 2, and the actual logical time interval of 1 or 2 or 3 resources when the maximum number of resources indicated by the SCI is 3.

N is the number of resources actually indicated by SCI, and the time interval is determined as follows:

if n=1, triv=0

Otherwise if n=2, triv=t ₁

Otherwise

If (t) ₂ -t ₁ -1)≤15，TRIV＝30(t ₂ -t ₁ -1)+t ₁ +31

Otherwise, triv=30 (31-t ₂ +t ₁ )+62-t ₁

Ending the cycle

Ending the cycle

As shown in fig. 3, where the time slot in which the first resource is located is the time slot in which the SCI is received. t is t _i Representing the time interval (time domain offset value) in logical time slots relative to the first resource in the resource pool. N=2, 1.ltoreq.t ₁ ≤31，N＝3，1≤t ₁ ≤30，t ₁ <t ₂ ≤31。

As shown in fig. 3, it is assumed that the UEA transmits SCI, and the resources indicated by SCI include used resources R1-0 and reserved resources R1-1, R1-2; the frequency domain resource allocation field indicates the frequency domain starting position of the second resource R1-1, the frequency domain starting position of the third resource R1-2, and the frequency domain lengths of the three resources, and the frequency domain starting position n1-0 of the first resource R1-0 does not need to be indicated, because when other UEs detect SCI, the frequency domain starting position of the first resource can be deduced according to the sub-channel where the SCI is located, and thus no additional indication is needed, as shown in fig. 5, the multiplexing structure diagram of PSCCH and PSSCH is as follows.

As shown in fig. 4, it is assumed that the UEA transmits SCI, and the resources indicated by SCI include used resources R1-0 and reserved resources R1-1, R1-2; r2-0, R2-1, R2-2. Wherein R2-0, R2-1, R2-2 are determined according to R1-0 and reserved resources R1-1, R1-2 and period. For example, the time interval for resources R1-0 and resources R2-0 is period P; the time interval for resource R1-1 and resource R2-1 is period P; the time interval for resource R1-2 and resource R2-2 is period P; the period P is determined according to the resource reservation period field in SCI, and the occupied bit number isN _{rsv_period} Is a set of periodic values for higher-level configurations.

Other UEs can infer the resources indicated in the first period and the resources indicated in the later period based on detecting TRIV, FRIV and the resource reservation period field in the SCI.

Specifically, the manner of determination regarding the FRIV field is as follows:

when the maximum number of resources indicated by SCI is 2,

when the maximum number of resources indicated by the SCI is 3,

wherein,a start subchannel index indicating the second resource,/->Start subchannel index indicating the third resource,/->Is the number of sub-channels of the resource pool, which is configured or preconfigured by the base station. If the TRIV indicates N <The remaining starting subchannel index of sl-MaxNumPerReserve (the maximum number of resources indicated by SCI) is not used.

LTE-V resource selection procedure:

step 1: the candidate single subframe resource is denoted as R _x,y Defined as subframesInherently frequency-domain continuous L _subCH A subchannel, wherein the subchannel includes an index of x+j, j=0,.. _subCH -1。

The candidate single subframe resource may be a time interval [ n+T ] ₁ ,n+T ₂ ]Any L in any one subframe in _subCH Successive subchannels. Wherein T is ₁ And T ₂ Depending on the UE implementation and satisfying the following limitations:

the value of T1 needs to satisfy T ₁ The value of T2 is less than or equal to 4, and the value needs to satisfy: t (T) _2min (prio _TX )≤T ₂ Less than or equal to 100, if the higher layer is configured with prio _TX Corresponding T _2min (prio _TX ) Then use this value, otherwise 20.ltoreq.T ₂ ≤100。T ₂ Should meet the latency requirement.

The total number of candidate single subframe resources is M _total 。

Step 2: UE listening sub-frame

If these areAnd if the UE needs to transmit in the frame, the UE does not monitor. Wherein,if subframe n belongs to a setOtherwise subframe->Is a sub-frame n followed by a set +.>The UE should perform the following steps based on PSCCH decoding results and S-rsi measurements in these subframes;

step 3: parameter Th _a,b Is set to the i-th value indicated by the SL-thresps sch-RSRP field in the SL-thresps sch-RSRP-List, where i= (a-1) 8+b.

Step 4: set S _A I.e. the union of all candidate single sub-frame resources. Set S _B Is initialized to an empty set.

Step 5: UE slave set S _A Excluding candidate single slot resources that satisfy all of the following conditions:

UE does not listen to subframes in step 2

-having an integer j satisfying y+j x P _r ' _{svp_TX} ＝z+P _step X k x q, where j=0, 1, …, C _resel -1,P _r ' _{svp_TX} ＝P _step ×P _{rsvp_TX} 100, k is any value allowed by the higher-layer parameter restrictResourceReservationPeriod, q=1, 2, …, q. Here, if k<1，n'-z≤P _step ×k,Wherein if subframe n belongs to the set, otherwise subframe +.>Is sub-frame n belonging to the set +.>Is a first subframe of (a); otherwise, the method is used for controlling the power supply.

Step 6: UE slave set S _A Excluding candidate single slot resources R satisfying all of the following conditions _x,y :

-UE in subframeReceiving SCI, resource reservation field in SCI, priority field indicating P _{rsvp_RX} ，prio _RX 。

PSSCH-RSRP greater than based on received SCI measurement/>

-in a subframeThe SCI received or to be in subframe +.>Received SCI determination and->A set of overlapping resource blocks and subframes, where Q = 1,2, …, Q; j=0, 1, …, C _resel -1. Here,

if P _{rsvp_RX} <1，n′-m≤P _step ×P _{rsvp_RX} ,Wherein if subframe n belongs to a setThen->Otherwise the subframe belongs to the set +.>Is a first subframe of (a); otherwise q=1.

Step 7: if set S _A The number of remaining candidate single subframe resources is less than 0.2M _total Then Th is taken _a,b i lifting 3dB re-performs step 4.

Step 8: for set S _A Candidate single subframe resource R remaining in (3) _x,y ,E _x,y Defined as the linear average of the S-RSSI measured at sub-channel x + k in the monitored sub-frame in step 2. Where k=0,.. _subCH -1 listening sub-frame at P _{rsvp_TX} Record as 100%Wherein j is a non-negative integer, and the other cases are marked as +.>Where j is a non-negative integer.

Step 9: the UE is according to E _x,y The candidate single subframe resource R is sequentially selected from small to large _x,y From the set S _A Move to set S _B Repeating the headquarter until the collection S _B The number of the candidate single subframe resources is greater than or equal to 0.2.M _total 。

With the development of wireless communication technology, there is an increasing demand for proximity services with which surrounding people or things communicate, so device-to-device (D2D) technology has grown. The application of the D2D technology can reduce the burden of a cellular network, reduce the battery power consumption of user equipment, improve the data transmission rate and well meet the requirement of the proximity service of a user. D2D technology allows multiple D2D enabled user devices to directly discover and communicate with or without a network infrastructure. In view of the characteristics and advantages of the D2D technology, a vehicle networking application scenario based on the D2D technology is proposed, but due to the consideration of safety, the requirement on time delay in the scenario is very high, and the existing D2D technology cannot meet the requirement on safety.

Thus under the network of LTE technology proposed by the third generation partnership project (the 3rd generation partnership project,3GPP), internet of vehicles technology is proposed, vehicle-to-anything communication (vehicle to everything, V2X), V2X communication referring to vehicle-to-anything communication with the outside world, including vehicle-to-vehicle communication (vehicle to vehicle, V2V), vehicle-to-pedestrian communication (vehicle to pedestrian, V2P), vehicle-to-infrastructure communication (vehicle to infrastructure, V2I), vehicle-to-network communication (vehicle to network, V2N).

V2X communication is a basic technology and a key technology applied to high-speed equipment represented by vehicles in the scene with very high requirements on communication delay in the future, such as intelligent automobiles, automatic driving, intelligent transportation systems and the like. The V2X communication may support communication scenarios with and without network coverage, and the resource allocation manner may adopt a network access device scheduling mode, such as an evolved universal terrestrial radio access network Node B (E-UTRAN Node B, abbreviated as eNB) scheduling mode and a terminal device self-selection mode. Based on V2X technology, a Vehicle user (V-terminal device for short) can send some information of the Vehicle user itself, such as information of position, speed, intention (turning, doubling, reversing) and other periodic and some aperiodic event-triggered information to surrounding V-terminal devices, and similarly, the V-terminal devices can also receive information of surrounding users in real time.

Fig. 5 (a) and (b) are schematic diagrams of communication scenarios suitable for use in embodiments of the present application. The information transmission method provided by the embodiment of the application can be applied to terminal direct communication (side-link communication), internet of vehicles, cellular communication (including 5G NR communication and LTE) and WiFi communication systems, such as terminal equipment in side-link communication. The terminal device may communicate via a sidelink when there is no network coverage. The terminal device may be located within the coverage area of the network device, and the terminal device within the coverage area may perform direct communication (sidelink communication) with the terminal device outside the coverage area. Taking the V2X scenario as an example, the vehicle-mounted terminal needs to be kept connected with the network to obtain some configuration information, and also needs to be kept connected with other vehicle-mounted terminals to realize vehicle-mounted communication. The connection between the vehicle-mounted terminal equipment and the base station is an uplink and a downlink, and the connection between the vehicle-mounted terminal equipment is a side downlink.

It should be understood that the embodiments of the present application may also be applied to other communication systems, and the number of network devices and terminal devices included in the communication system is not limited. As long as the communication system has a presence entity that can send information, the communication system also has other entities that can receive information.

In addition, in the communication scenario of the embodiment of the present application, the network device is configured to provide a communication service for the terminal device and access to the core network, and the terminal device may access the network by searching for a signal such as a synchronization signal, a broadcast signal, and the like sent by the network device, so as to establish communication with the network device.

It should be appreciated that in the communication scenario used in embodiments of the present application, co-channel coexistence of LTE-V transmissions and NR-V transmissions is quite common, i.e. the set of time-frequency resources that can be used by LTE-V transmissions and NR-V transmissions are the same. Therefore, in order to avoid collision between LTE-V transmission and NR-V transmission, it is necessary to consider that the NR-V transmission does not collide with the location of the LTE-V transmission according to the location of the LTE-V transmission.

The reason why the LTE-V transmission and the NR-V transmission collide is described in detail below by the LTE-V frame structure and the NR-V frame structure.

First, it should be noted that for the same time-frequency resource, LTE-V and NR-V are distinguished for understanding of the frame structure. One subframe occupies 14 symbols in the transmission of the LTE-V, and a time domain unit of the scheduling data is one subframe. One slot occupies 14 symbols for transmission of NR-V, and a time domain unit of scheduling data is one slot.

By way of example and not limitation, as shown in fig. 6, in LTE-V, the first symbol in one subframe is used for an automatic gain control symbol, i.e., symbol #0 is an AGC symbol. In NR-V, when PSFCH resources are included in one slot, symbol #0 '(a symbol preceding the first symbol of the PSSCH) and symbol #11' (a symbol preceding the PSFCH symbol) of the slot are used for AGC adjustment. This is because the UE transmitting data using symbol #1'- #9' and the UE transmitting PSFCH using symbol 12 are not necessarily the same, and the UE transmitting PSFCH in symbol #11 'may be more than one, while the power of transmitting PSSCH in symbol #1' - #9 'and the power of transmitting PSFCH in symbol #12' are different, and thus it is necessary to use AGC symbol for power adjustment before transmitting PSFCH.

It is easy to understand that when the LTE-V transmission and the PSFCH symbols overlap, after the power adjustment of symbol #0, the LTE-V module is interfered by the PSFCH at symbol #12' in the NR-V transmission, so that the power adjustment of its own symbol #11- #12 is affected, resulting in poor reception performance of LTE-V.

The embodiment of the application provides a side uplink communication method and device, wherein user equipment can judge whether resources corresponding to feedback information corresponding to NR-V data overlap with resources for LTE-V transmission in a time domain or not, and control NR-V transmission of the user equipment according to a judging result, so that the problem that when NR PSFCH transmission and LTE-V transmission overlap in the time domain, the receiving performance of LTE-V transmission is influenced by sending NR-V transmission feedback information is avoided.

Example 1

Fig. 7 illustrates a method 100 for information transmission according to an embodiment of the present application. The method 100 may include the following steps.

S110, the terminal #a acquires the instruction information #1 (an example of the first instruction information), the instruction information #1 is used to instruct the resource #a (an example of the first resource), the resource #a is a resource occupied by the LTE-V transmission, or the resource #a is a candidate resource for the LTE-V transmission, and the resource #a belongs to the resource set #1 (an example of the first resource set).

It should be noted that, the resources occupied by the resource #a for the LTE-V transmission may be understood as resources already used by the resource #a for the LTE-V transmission before the resource selection time, and resources reserved for the LTE-V transmission after the resource selection time. Alternatively, the resources occupied by the LTE-V transmission may be understood as reserved resources of the LTE-V transmission or may be understood as reserved resources of the LTE-V. Alternatively, it can be understood as resources already occupied by LTE-V and resources to be occupied. Alternatively, it can be understood as the resources that LTE-V will occupy.

It should be appreciated that the indication information #1 indicates resources that may be occupied by more than one LTE transmission. The terminal #a acquires a set of resources occupied by LTE-V transmission or a set of candidate resources for LTE-V transmission, for example. Hereinafter, the details will be described.

It should be appreciated that resource set #1 may be understood as a resource pool. It may also be understood as a resource pool where the terminal #a is configured, or as a shared resource pool. The meaning of shared resource pool can be understood as a set of time-frequency resources that enables transmission of channels or signals using the NR radio access system and the LTE radio access system. The shared resource pool is not limited to be used by both the NR radio access system and the LTE radio access system at the same time, and the coexistence mode of the NR radio access system and the LTE radio access system in the resource pool is not limited. The shared resource pool may be understood as a resource pool where NR-V and LTE-V co-channels coexist. Or the shared resource pool is a resource pool where co-channels coexist. Or the shared resource pool is a resource pool commonly used by NR-V and LTE-V.

It should be understood that terminal #a may be understood as an NR-V module of terminal #a or a module having an NR-V function in terminal #a.

It should be appreciated that the resources occupied by LTE-V transmissions are N consecutive subchannels in the frequency domain, 1 subframe in the time domain, or one slot. Wherein N has a value of at least 1. Illustratively, the resources occupied by the LTE-V transmission are resources indicated by SCI detected by the LTE-V module of the terminal #a or by the LTE-V module of other terminals. Further, the resources indicated by the detected SCI may be determined during the resource selection process. The number of frequency domain subchannels of the resources occupied by the LTE-V transmission may be one or more, and embodiments of the present application are not particularly limited herein.

It should be understood that the terminal #a can acquire the indication information #1 in various manners, and as an example and not by way of limitation, the NR-V module of the terminal #a may receive the indication information transmitted by the LTE-V module of the same terminal, thereby acquiring the time-frequency location of the resource #a. Interaction or pass-through between the NR-V module and the LTE-V module may be understood herein.

It should be understood that the terminal #a can also acquire the indication information #1 by other means, by way of example and not limitation, the NR-V module of the terminal #a acquires the indication information transmitted by the LTE-V module of another terminal, thereby acquiring the time-frequency location of the resource #a.

In one possible implementation, resource #A is a resource occupied by LTE-V transmission, and resource #A ε is a resource set #A1. That is, the terminal #a acquires the resource set #a1 (it can be understood that the instruction information #1 indicates the resource set #a1). The resource set #a1 is a subset of the resource set #a1 (or the resource set #a1 and the resource pool #1 overlap), and the resources in the resource set #a1 are resources occupied by LTE-V transmission, and the resource #a may be one resource in the resource set #a1 or may be a plurality of resources in the resource set #a1. The resource set #a1 occupies a time window in the time domain, and it should be understood that the time window may be a set of time domain units, a set of timeslots, and a set of subframes, which are not limited herein in this embodiment. The resource set #A1 ranges from the LTE-V resource pool or the shared resource pool in the frequency domain.

By way of example and not limitation, the indication information #1 indicates a time domain location and a frequency domain location of the resource #a in the resource set #a1, thereby enabling the terminal #a to determine a time-frequency location of the resource occupied by the LTE-V transmission through the indication information # 1. The terminal #A can determine multiple groups of time-frequency resources at the same time, and the number of resources indicated by each group of time-frequency resources is 3. Wherein the frequency domain starting position of the first one of the 3 resources in the group, the time domain position of the first one of the resources is indicated separately. In addition, the starting position, time domain position, and frequency domain length of the second and third resources are indicated using time domain resource indication values (Time resource indication value, TRIV), time domain resource indication values (Frequency resource indication value, FRIV).

It should be understood that, to determine (determine) whether the resources occupied by LTE-V overlap with the resources #b in the time domain, the indication information #1 in the embodiment of the present application may also indicate only the time domain position of the resources #a in the resource set #a1, which is not limited in the embodiment of the present application.

By way of example and not limitation, the indication information #1 indicates a time domain reference point, thereby enabling the terminal #a to determine a time-frequency location of a resource occupied by the LTE-V transmission through the indication information # 1. For each set of time-frequency resource time-frequency locations, the time-domain location of the first resource within the set is determined from the time-domain reference point and slot offset. It should be appreciated that the time domain reference point is the time domain position of the first resource of the first set of time-frequency resources, and the first set of time-frequency resources does not need slot offset. As shown in fig. 8, an indication manner of two sets of LTE-V resources is taken as an example. The first set of resources is indicated by { TRIV 1, friv 1} and the frequency domain starting position of resource 1, and the second set of resources is indicated by { TRIV 2, friv 2}, slot offset2, and the frequency domain starting position of resource 4.

By way of example and not limitation, the indication information #1 indicates a frequency domain range of the resource set #a1. Thus, terminal #A can determine the frequency domain range of the resources shared by NR-V and LTE-V.

By way of example and not limitation, the indication information #1 indicates a decoding result of the SCI, and the terminal #a receives indication information of time-frequency resources of the resource #a, thereby determining a time-frequency location of the resources occupied by the LTE-V transmission. Specifically, the NR-V module of the terminal #a may determine the location of the time-frequency resource of the resource #a in the resource set #a1 according to the decoding result of the SCI of the LTE-V transmission.

In another possible implementation, resource #a is a resource occupied by LTE-V transmission, and resource #a belongs to resource set #a2. That is, the terminal #a acquires the resource set #a2 (it can be understood that the instruction information #1 indicates the resource set #a2). The resource set #a2 is a subset of the resource set #a1 (or the resource set #a2 and the resource pool #1 overlap), the resources in the resource set #a2 are all resources occupied by LTE-V transmission and the corresponding energy measurement value is greater than the threshold #a (an example of the first threshold), and the resource #a may be one resource in the resource set #a2 or may be a plurality of resources in the resource set #a2. The range of the resource set #a2 in the time domain and the frequency domain is the same as the resource set #a1, and the description thereof is omitted.

By way of example and not limitation, the energy measurement is an RSRP measurement, i.e., the resources in resource set #a2 are resources occupied by LTE-V transmissions detected by the LTE-V module and the corresponding reference signal received power (Reference Signal Receiving Power, RSRP) measurement is greater than the threshold #a.

By way of example and not limitation, the terminal #a can determine time-frequency information and energy measurement of resources occupied by LTE-V transmission by acquiring the indication information # 1. Specifically, the NR-V module of the terminal #a acquires the instruction information #1, and the instruction information #1 indicates the decoding result of the SCI and the RSSP measurement value associated with the SCI. And the terminal #A determines the time-frequency position of the resources occupied by the LTE-V transmission through the indication information. The DMRS RSRP may be measured according to the DMRS of the PSCCH scheduled by the detected SCI, or according to the DMRS of the PSCCH where the detected SCI is located. Here, the resources occupied by the LTE-V transmission are resources indicated by the SCI. In LTE-V, SCI can also be understood or replaced by SA. SCI is control information carried in PSCCH. The names thereof are not particularly limited herein.

It should be understood that the threshold #a is determined according to the priority #a (an example of the first priority) and the priority #b (an example of the second priority). Where priority #a is a priority (priority value) used in LTE-V resource selection or reselection, and priority #b is a priority (priority value) indicated in SCI. It should be understood that the Priority may be a Priority in LTE-V transmission (PPPP), or a Priority in NR-V transmission, which is not limited by the embodiments of the present application. It should be appreciated that the threshold #a of RSRP measurement may be determined in other ways as well. For example, the threshold #a is from an RSRP threshold table, and the threshold #a is determined in the RSRP threshold table according to two priority values. As shown in table 1, the RSRP threshold table is a two-dimensional table, where one dimension is the priority of sending, i.e., the priority used in making resource selection or resource reselection, and the other dimension is the priority in the detected SCI. The present application is not limited in this regard. The PPPP has a value in the range of an integer from 1 to 8, including 8 values, wherein a smaller value indicates a higher priority level, i.e. is more important. The priority value ranges from an integer of 1 to 8, including 8 values, where a smaller value indicates a higher priority level, i.e., more important.

Table 1RSRP threshold tables

PPP1

PPP2

PPP3

PPP4

PPP5

PPP6

PPP7

PPP8

PPP1

TH 1

TH 2

TH 3

TH 4

TH 5

TH 6

TH 7

TH 8

PPP2

TH 9

TH 10

TH 11

TH 12

TH 13

TH 14

TH 15

TH 16

PPP3

TH 17

TH 18

TH 19

TH 20

TH 21

TH 22

TH 23

TH 24

PPP4

TH 25

TH 26

TH 27

TH 28

TH 29

TH 30

TH 31

TH 32

PPP5

TH 33

TH 34

TH 35

TH 36

TH 37

TH 38

TH 39

TH 40

PPP6

TH 41

TH 42

TH 43

TH 44

TH 45

TH 46

TH 47

TH 48

PPP7

TH 49

TH 50

TH 51

TH 52

TH 53

TH 54

TH 55

TH 56

PPP8

TH 57

TH 58

TH 59

TH 60

TH 61

TH 62

TH 63

TH 64

It should be understood that the energy measurement may be other measurements as well. By way of example and not limitation, the energy measurement is one of a received signal strength indication (received signal strength indicator, RSSI) measurement, a channel quality indication (Channel Quality Indication, CQI) measurement, a signal to interference plus noise ratio (Signal To Interference Plus Noise Ratio, SINR) measurement, or a signal to noise plus power ratio (SignalTo Nosie Ratio, SNR) measurement. By way of example and not limitation, for one of the above energy measurements, the threshold #a is configured. I.e. the threshold #a may be preconfigured or configured by the network device or be a preset value.

By way of example and not limitation, the terminal #a can determine time-frequency information and corresponding energy measurements of resources occupied by the LTE-V transmission (which may also be understood as resources occupied by the LTE-V transmission and corresponding energy measurements) by acquiring the indication information # 1. Specifically, the NR-V module of the terminal #a acquires the indication information #1, where the indication information #1 indicates one of the resources occupied by the LTE-V transmission and the energy measurement value detected by the LTE-V module. The corresponding energy measurement is the energy measurement determined from measurements made within the resources occupied by the LTE-V transmission.

In another possible implementation, resource #a is a candidate resource for LTE-V transmission, and resource #a belongs to resource set #a3. Where resource set #a3 is a subset of resource set #1 (or resource set #a3 and resource set #1 overlap), and the resources in resource set #a3 are candidate resources available for LTE-V transmission. As shown in fig. 9, the resource set #a3 is a set of candidate resources remaining after the LTE-V module excludes the candidate resources overlapping with the resources occupied by the LTE-V transmission in the resource set #2 (an example of the second resource set) in the process of selecting or reselecting the resources. Wherein resource set #2 is all candidate resources within the resource selection window that can be used for LTE-V transmission. The resource selection window is a time window, or a time period, or a set of subframes, or a set of time slots. The resource selection window is determined for the LTE-V module or indicated to the LTE-V module by the NR-V module. The resource #a may be one resource in the resource set #a3 or may be a plurality of resources in the resource set #a3, which is not limited in this application.

It should be noted that, the candidate resources for LTE-V transmission occupy one subframe in the time domain and occupy one or more subchannels in the frequency domain. Optionally, when the number of candidate resources for LTE-V transmission is multiple, the number of subchannels occupied by each candidate resource in the frequency domain is the same. It is to be understood that the candidate resources for LTE-V transmission may be understood as a single subframe candidate resource or a single candidate resource or a candidate subframe resource.

It should be appreciated that the terminal #a can determine candidate resources for LTE-V transmission according to the indication information #1, and the candidate resources for LTE-V transmission may be one or more. Specifically, the manner in which the instruction information #1 instructs the resource set #a3 may be the same as the manner in which the resource set #a1 is instructed, or the resource #a in the resource set #a3 may be instructed by other means. By way of example and not limitation, the indication information #1 indicates a time domain range (time domain start position and time domain end position, or time domain start position and length) and/or a frequency domain range of the resource set #a3. The time domain reference point referred to in determining the resource #a may be preset, for example, the time of transmitting the foregoing indication information is compared with the time domain reference point of dfn=0 or sfn=0.

In another possible implementation, resource #a is a candidate resource for LTE-V transmission and the corresponding energy measure is less than or equal to threshold #b (another example of the first threshold), and resource #a belongs to resource set #a4 (another example of the second resource set), wherein resource set #a4 is a subset of resource set # 1. The set of candidate resources remaining after the candidate resources overlapping the resources occupied by the LTE-V transmission and having the corresponding energy measurement value greater than the threshold #b are excluded from the resource set #2 (an example of the second resource set). Wherein resource set #2 is all candidate resources for LTE-V within the resource selection window. The resource #a may be one resource in the resource set #a4 or may be a plurality of resources in the resource set #a1, which is not limited in this application.

By way of example and not limitation, resource set #A4 may be S after performing step 6 in the LTE-V resource selection or reselection procedure _A I.e. excluding candidate resources that overlap with resources occupied by LTE-V transmissions and for which the corresponding RSRP measurement is greater than the threshold #b.

By way of example and not limitation, resource set #A4 may be S after step 7 is performed during resource selection or reselection of LTE-V _A I.e., excluding candidate resources that overlap with the resources occupied by the LTE-V transmission and that have a corresponding energy measurement greater than the threshold # B,and S is _A The number of resources in (a) is not less than 20% of the total number of candidate resources in the resource selection window (Resource Selection window, RSW).

By way of example and not limitation, resource set #A4 may be S after step 9 is performed during resource selection or reselection of LTE-V _B I.e. excluding the candidate resources overlapping the resources occupied by the LTE-V transmission and having a corresponding RSRP measurement value greater than the threshold #b, the number of resources in the SA is not less than 20% of the total number of candidate resources in the RSW and the set of the remaining candidate resources having a smaller preferentially selected RSSI measurement value.

It should be understood that, the manner in which the indication information #1 indicates the resource #a in the resource set #a4 is the same as the manner in which the time-frequency position of the resource #a in the resource set #a3 is indicated, and a description thereof will be omitted.

The terminal #a is (pre) configured with one of the 4 resource sets (resource set #a1, resource set #a2, resource set #a3, resource set #4) or any subset of the 4 resource sets on the RP. It should be appreciated that terminal #a is also capable of receiving information from the network device on the resource pool indicating that terminal #a is configured as one of the above-described 4 resource sets or any subset of the 4 resource sets, which is not limited herein.

It is easy to understand that, in order to determine whether the resources occupied by the LTE-V transmission overlap with the resources #b, the terminal #a needs to acquire the resources #b of the feedback information corresponding to the NR-V data. Specifically, the terminal #a can determine the resource #b corresponding to the feedback information by receiving the resource #c (an example of the third resource) used by the NR-V data, that is, determine the resource used by the feedback information transmitted using the NR according to the resource used by the data transmitted using the NR, wherein the resource #b is implicitly related to the resource #c, which is not specifically described in the embodiments of the present application.

It should be appreciated that resource #b is one PRB in the PSFCH symbol. The PSFCH symbol is the penultimate symbol in a slot. The terminal #A uses the resource #B to send feedback information of NR-V, and the feedback information of NR-V is carried on PSFCH.

It should be understood that the terminal #a is a device which receives data and transmits feedback information. By way of example and not limitation, terminal #a receives data in slot 1 and feeds back PSFCH in slot 2, where slot 2 is the first slot after N time intervals comprising PSFCH resources within the NR-V resource pool. Wherein, NR-V resource pool can be understood as resource set #1, i.e., shared resource pool. It is also understood that the NR-V resource pool includes resource set #1, i.e., the NR-V resource pool includes shared resources where co-channels coexist and resources dedicated to NR-V.

By way of example and not limitation, resource #b belongs to resource set #b1, resource set #b1 is a subset of resource set #1, and resource set #b1 is an overlapping portion of a resource pool of NR-V and an LTE-V resource pool in co-channel transmission of NR-V transmission and LTE-V transmission. The NR-V resource pool may include different contents, and the NR-V resource pool includes NR-V dedicated resources, that is, resources shared with LTE-V and resources dedicated to NR-V. Illustratively, the resource pool of NR-V includes only the resources shared with LTE-V, i.e., the available set of resources of NR-V is also the available set of resources of LTE-V, which is not limited herein.

The data transmitted by NR-V transmission requires HARQ feedback, i.e. the data transmitted using the NR radio access system requires HARQ feedback. Specifically, the terminal #a receives SCI, which schedules PSSCH in which data information is carried. The HARQ enable field in the second stage SCI indicates HARQ enable (i.e. HARQ enable/disable field indicates 1,1 indicates HARQ enable, 0 indicates HARQ disable). The cast type field in the second level SCI indicates whether the transmission type is unicast or multicast.

The subcarrier spacing of LTE-V is 15kHz, and the subcarrier spacing of NR-V may be 15kHz,30kHz,60kHz. When the subcarrier spacing of NR-V is 15kHz, the subframe length of LTE-V and the slot length of NR-V are the same.

As shown in fig. 10, when the subcarrier spacing of NR-V is 30kHz or 60kHz, the subframe length of LTE-V and the slot length of NR-V are different. By way of example, but not limitation, the time domain unit of the resource information of the LTE-V module acquired by the NR-V module is based on the time domain unit of the NR-V module, and the time domain unit of the resource of the LTE-V acquired by the NR-V module is a subframe, the NR-V module converts the time domain unit of the resource of the LTE-V into the time domain unit of the NR-V according to the subcarrier interval of the LTE-V and the time domain unit of the resource of the LTE-V, so that the resource indication information of the LTE-V may be further utilized. It should be understood that the time domain unit of the resource information of the LTE-V module acquired by the NR-V module may also be based on the time domain unit of the LTE-V module, which is not limited in this application.

S120, the terminal #A determines whether the resources occupied by the LTE-V transmission and the resources #B overlap according to the indication information # 1.

In one possible implementation, the terminal #a determines whether the resources occupied by the LTE-V transmission overlap with the resources #b according to the indication information #1, and the terminal #a further determines whether the resources occupied by the LTE-V transmission overlap with the resources #b through the resources #a of the candidate resources for the LTE-V transmission. Specifically, for resource #a of resource set #a3 or resource set #a4, the terminal #a determines whether resource #a in resource set #a3 or resource set #a4 overlaps with resource #b, thereby determining whether the resources occupied by LTE-V transmission overlap with resource #b.

By way of example and not limitation, terminal #a determines whether resource #a and resource #b satisfy condition #a by resource #a in resource set #a3 and/or resource #a3 of candidate resources for LTE-V transmission, thereby determining whether resources occupied by LTE-V transmission overlap with resource #b.

Specifically, the condition #a includes the following sub-conditions:

sub-condition #a: resource #b belongs to resource set #a3, and resource #b is not frequency-divided with resource #d (an example of a fourth resource), resource #d is a candidate resource from which resource #a is excluded from at least one candidate resource included in time domain unit #1 (an example of a first time domain unit), and time domain unit #1 is a time domain unit where resource #b is located;

sub-condition #b: resource #b belongs to resource set #a3, and the number of candidate resources included in time domain unit #1 is equal to the maximum number of candidate resources that one time domain unit can include;

sub-condition #c: resource #b is not frequency-divided with resource #d;

sub-condition #d: the number of the resources #D is 0;

sub-condition #e: time domain unit #1 includes a total number of candidate resources equal to the maximum number of candidate resources that one time domain unit may include. I.e. the number of candidate resources comprised by time domain unit #1 is equal to the maximum number of candidate resources comprised by time domain unit # 1. Illustratively, for the above sub-conditions, include:

Resource #b belongs to resource set #a3, and it is understood that resource #b overlaps with resource set #a3 or resource #b overlaps with resource set #a3 in time domain. Alternatively, it may be replaced with: the resource #b time domain belongs to the resource #a, or the resource #b and the resource #a overlap or overlap in time domain. Resource #b is not frequency-divided with resource #d, and it is understood that resource #b and resource #d do not overlap in the time domain.

Time domain unit #1 is a time domain unit where resource #b is located, and it is understood that time domain unit #1 is a time domain unit overlapping with resource #b.

It should be appreciated that the maximum number of candidate resources included in slot #1 is N-l+1, where N is a positive integer, N is the number of subchannels included in the frequency domain resources of the LTE-V transmission, and L is the number of subchannels included in the frequency domain resources of the first resource.

By way of example and not limitation, the NR-V module of terminal #A obtains the frequency domain range, i.e., the frequency domain starting position and length, of resource set #A 3. The frequency domain length can be understood as the number of sub-channels included in the resource set #a3, and at this time, the NR-V module can determine the number of candidate single slot resources included in one slot according to the frequency domain range and the frequency domain length. As shown in fig. 11, one slot includes 4 subchannels and the resource set #a3 includes 2 subchannels, it is easy to understand that one slot includes 3 resources #a, i.e., one slot includes 3 candidate resources, since the candidate resources should include consecutive subchannels. The terminal #a determines whether the resource #c overlaps with the resource set #a3 by the sub-condition #a or sub-condition #b. It should be understood that the frequency domain range may also be a frequency domain end position and length, or a frequency domain start position and end position, which are not limited herein.

For example, in the subframe #1, the total number of candidate resources included in the subframe #1 is N, and assuming that the number of candidate resources included in the subframe #1 in the resource set # A3 is smaller than N, it indicates that the subframe #1 includes resources occupied by LTE-V transmission, and that the subframe has overlapping resources #b in the time domain.

It should be understood that when the NR-V module of the terminal #a determines (determines) that the resources #a and #b satisfy at least one of the sub-conditions, i.e., the sub-condition #a, the sub-condition #b, the sub-condition #c, the sub-condition #d, and the sub-condition #e, the terminal #a determines (determines) that the resources occupied by the transmission of the LTE-V and the resources #b do not overlap in the time domain.

Correspondingly, as an example and not by way of limitation, for resource #a of candidate resources for LTE-V transmission, i.e., resource #a in resource set #a3, the terminal #a determines whether the resources occupied by LTE-V transmission overlap with resource #b according to whether the resource #a and resource #b satisfy condition #b.

Specifically, the condition #b includes the following sub-conditions:

sub-condition #a': resource #b does not belong to resource set #a3;

sub-condition #b': resource #b and resource #d frequency division, i.e., resource #b and resource #d overlap in time domain;

sub-condition #c': time domain unit #1 includes less than the maximum number of candidate resources that a time domain unit may include;

Sub-condition #d': the number of the resources #D is more than 0;

it should be appreciated that the maximum number of candidate resources comprised by the time domain unit #1 is N-l+1, where N is a positive integer, N is the number of subchannels comprised by the frequency domain resources of the LTE-V transmission, and L is the number of subchannels comprised by the frequency domain resources of the first resource.

It should be understood that when the NR-V module of the terminal #a determines that the resources #a and #b satisfy at least one of the conditions #b, i.e., the sub-condition #a ', the sub-condition #b', the sub-condition #c ', and the sub-condition #d', the terminal #a determines that the resources occupied by the LTE-V transmission overlap with the resources #b.

Note that, for the resource set #a4 or the resource #a in the resource set #a4, the manner in which the terminal #a determines whether the resources occupied by the LTE-V transmission overlap with the resource #b is the same as the resource set #a3, and the description thereof is omitted.

In another possible implementation, the terminal #a determines the resource #a according to the indication information #1, and further determines whether the resources occupied by the LTE-V transmission overlap with the resource #b. Specifically, for resource #a in resource set #a3 or resource set #a4, the terminal #a determines whether or not the resources occupied by the LTE-V transmission overlap with resource #b according to resource #a in resource set #a1 or resource #a2.

For example, as shown in fig. 12, the resource #a is a resource occupied by the LTE-V transmission, that is, the resource #a is a resource #a in the resource set #a1, or the resource #a in the resource set #a2, and the terminal #a determines whether the resource occupied by the LTE-V transmission does not overlap with the resource #b according to whether the resource #a and the resource #b satisfy the condition #c.

Specifically, the condition #c is that the resource #b and the resource #a are time-division multiplexed, that is, the resource #b and the resource #a do not overlap in the time domain.

It should be appreciated that when resource #a and resource #b satisfy condition #c, the terminal #a determines that resources occupied by resource #b and LTE-V transmission do not overlap.

For example, the terminal #a acquires the resource set #a1, and any one of the resources #b and the resource set #a1 is not overlapped in the time domain, i.e., the resources occupied by the resources #b and the LTE-V transmission are not overlapped in the time domain. Or, the terminal #a acquires the resource set #a2, and any one of the resources #b and the resource set #a2 is not overlapped in the time domain, i.e., the resources occupied by the resources #b and the LTE-V transmission are not overlapped in the time domain.

Correspondingly, as an example and not by way of limitation, resource #a is a resource occupied by LTE-V transmission, i.e., resource #a in resource set #a1 or resource #a2, and terminal #a determines whether resource #a and resource #b satisfy condition #d, thereby determining whether resource #a overlaps with resource #b.

Specifically, the condition #d is that the resource #b and the resource #a are frequency division multiplexed, that is, the resource #b and the resource #a overlap in the time domain.

It should be appreciated that when the terminal #a determines that the resources #a and #b satisfy the condition #d, the terminal #a determines that the resources occupied by the LTE-V transmission and the resources #b overlap in the time domain.

Illustratively, the terminal #a acquires a resource set #a1, and at least one resource of the resource #b and the resource set #a1 overlaps in time domain, i.e., resources occupied by the resource #b and the LTE-V transmission overlap in time domain. Or, the terminal #a acquires the resource set #a2, and at least one resource in the resource #b and the resource set #a2 overlaps in the time domain, and then the resources occupied by the resource #b and the LTE-V transmission overlap in the time domain.

Note that, for the resource #a in the resource set #a2, the manner in which the terminal #a determines whether the resources occupied by the LTE-V transmission overlap with the resource #b is the same as the resource set #a1, and the description thereof is omitted.

S130, the terminal #A transmits or does not transmit PSFCH corresponding to NR-V data on the resource #B.

The PSFCH corresponding to the sent NR-V data is feedback information corresponding to the sent NR-V data, and the feedback information is carried in the PSFCH.

The PSFCH corresponding to the NR-V data, i.e., the PSFCH transmitted using the NR wireless access system, or the PSFCH transmitted using the NR-V wireless access system, or may be the PSFCH corresponding to the NR-V.

In one possible implementation, for resource #a in resource set #a3 or resource #a in resource set #a4, the terminal #a determines whether to transmit the PSFCH corresponding to the NR-V data according to the result in S120.

By way of example and not limitation, when resource #a and resource #b satisfy condition #a, i.e., the resources occupied by LTE-V transmission do not overlap with resource #b, terminal #a transmits PSFCH corresponding to NR-V data.

By way of example and not limitation, when resource #a and resource #b satisfy condition #b, i.e., resources occupied by LTE-V transmission overlap with resource #b, terminal #a does not transmit PSFCH corresponding to NR-V data. Here, not transmitting the PSFCH may be understood as stopping transmitting the PSFCH, canceling the PSFCH, and discarding the PSFCH.

In another possible implementation manner, for resource #a in resource set #a1 or resource #a in resource set #a2, the terminal #a determines whether to transmit the PSFCH corresponding to the NR-V data according to the result in S120.

By way of example and not limitation, when resource #a and resource #b satisfy condition #c, i.e., resources occupied by LTE-V transmission do not overlap with resource #b, terminal #a transmits PSFCH corresponding to NR-V data.

By way of example and not limitation, when resource #a and resource #b satisfy condition #d, i.e., resources occupied by LTE-V transmission overlap with resource #b, terminal #a does not transmit PSFCH corresponding to NR-V data.

In another possible implementation, as shown in fig. 14, the time domain range of the resource #a indicated by the indication information #1 does not include the time domain position of the resource #b, it is easy to understand that the terminal #a cannot determine whether the resource #a overlaps with the resource #b, and further the terminal #a cannot determine whether the resource occupied by the LTE-V transmission overlaps with the resource #b.

Illustratively, in this case, terminal #A does not transmit PSFCH corresponding to NR-V data. At this time, the PSFCH of NR-V can be prevented from influencing the performance of LTE-V transmission.

Illustratively, in this case, terminal #A transmits PSFCH corresponding to NR-V data. At this time, when the PSFCH resource and the resource occupied by the LTE-V transmission are not overlapped in the time domain, the NR-V transmission can acquire the performance brought by the PSFCH.

Illustratively, in this case, the terminal #a acquires configuration information or pre-configuration information of the base station for indicating whether the terminal #a transmits the PSFCH corresponding to the NR-V data.

It should be understood that the terminal #a performs all steps of the method 100 at the MAC layer or the terminal #a performs all steps of the method 100 at the PHY layer, which is not limited in the embodiment of the present application.

In one possible implementation, when the terminal #a determines that the resources #b and the resources occupied by the LTE-V transmission overlap, and the priority value corresponding to the LTE-V transmission is lower than a threshold, the PSFCH corresponding to the NR-V data is not transmitted. The threshold is preset or configured. May be preconfigured or network device configured.

In another possible implementation, when the terminal #a determines that the resources #b and the resources occupied by the LTE-V transmission overlap, and the priority value corresponding to the LTE-V transmission is higher than a threshold, the PSFCH corresponding to the NR-V data is transmitted.

It is easy to understand that the terminal #a does not transmit the PSFCH corresponding to the NR-V data, and the corresponding receiving terminal does not receive the PSFCH corresponding to the NR-V data.

By way of example and not limitation, a receiving terminal determines that there is an overlap of PSFCH resources and resources occupied by LTE-V transmissions before receiving PSFCH and that the total number of PSFCHs to which the NR-V data is not received is greater than a threshold. The receiving terminal does not retransmit the NR-V data. Specifically, the initial value of the counter count is 0, and if the receiving terminal determines that the PSFCH resource and the resource occupied by the LTE-V transmission overlap and the PSFCH is not received, the counter count is incremented by 1. When the counter count value is greater than a threshold value, the receiving terminal does not retransmit the NR-V data.

By way of example and not limitation, a receiving terminal, prior to receiving a PSFCH, determines that there is an overlap of PSFCH resources and resources occupied by LTE-V transmissions and that the number of PSFCHs corresponding to consecutive non-receipt of the NR-V data is greater than a threshold, the receiving terminal does not retransmit the NR-V data. Specifically, the initial value of the counter count is 0, and if the receiving terminal determines that the PSFCH resource and the resource occupied by the LTE-V transmission overlap and the PSFCH is not received, the counter count is incremented by 1. When the counter count value is greater than a threshold value, the receiving terminal does not retransmit the NR-V data. The counter count is continuous. When PSFCH resources and resources occupied by LTE-V transmission are not overlapped in the previous PSFCH transmission, the counter count value is reset to 0.

Example 2

Fig. 13 illustrates a method 200 for information transmission provided in an embodiment of the present application. The method 200 may include the following steps.

S210, the terminal #b acquires the indication information #1 (an example of the first indication information), the indication information #1 is used for indicating the resource #a (an example of the first resource), the resource #a is a resource occupied by the LTE-V transmission, or the resource #a is a candidate resource for the LTE-V transmission, and the resource #a belongs to the resource set #1 (an example of the first resource set)

The terminal #b is a device for transmitting data and receiving feedback information, and the terminal #b has already determined a resource #c for transmitting data. The method for indicating the time-frequency position of the resource #a by the indication information #1, the method for determining the time-frequency position of the resource #a by the terminal #b according to the indication information #1, and the method for determining the time-frequency position of the resource #b by the terminal according to the resource #c may refer to the corresponding procedure in the previous method embodiment, which is not described herein again.

S220, the terminal #B determines whether the resources occupied by the LTE-V transmission and the resources #B overlap according to the indication information # 1.

The method for determining whether the resource #a and the resource #b meet the condition according to the indication information #1 by the terminal #b, thereby determining whether the resource occupied by the LTE-V transmission overlaps the resource #b may refer to the corresponding procedure in the previous method embodiment, which is not described herein.

S230, the terminal #b enables or disables HARQ feedback in the second stage SCI.

In one possible implementation, for resource #a in resource set #a3 or resource #a in resource set #a4, the terminal #b determines whether to enable HARQ feedback, which is feedback information carried on resource #b, is indicated in the second stage SCI according to the result in S220.

Illustratively, terminal #b transmits data #1 and indication information #2, wherein data #1 is associated with resource #b, i.e., terminal #b receives HARQ information of data #1 at resource #b. The indication information #2 is carried in the second stage SCI.

As an example and not by way of limitation, when the resource #a and the resource #b satisfy the condition #a, i.e., the resources occupied by the LTE-V transmission do not overlap with the resource #b, the terminal #b transmits the indication information #2 (an example of the second indication information), and the indication information #2 is carried in the second-stage SCI for indicating that HARQ feedback is enabled. That is, when the terminal #b determines that the data #1 needs HARQ feedback, it transmits the instruction information #2 to instruct the HARQ feedback of the data #1 to be enabled.

The field for enabling/disabling HARQ feedback is, for example, 1 bit, where a value of "1" indicates that HARQ feedback is enabled and a value of "0" indicates that HARQ feedback is disabled. The indication information #2 indicates that HARQ feedback is enabled, i.e., the value of "enable/disable HARQ feedback field" in the second stage SCI is set to 1.

By way of example and not limitation, terminal #b determines to enable or disable HARQ feedback according to whether data #1 requires HARQ feedback. In this way, it has been determined that PSFCH transmission does not affect LTE-V transmission, so PSFCH transmission can be performed according to NR-V requirements without changing the original terminal implementation method due to LTE-V transmission.

As an example and not by way of limitation, when the resource #a and the resource #b satisfy the condition #b, i.e., when the resource occupied by the LTE-V transmission overlaps with the resource #b, the terminal #b transmits the indication information #3 (an example of the third indication information), the indication information #3 being carried in the second-stage SCI for indicating to enable the HARQ feedback. That is, the terminal #b transmits the instruction information #2 to instruct to enable HARQ feedback of the data # 1. At this time, when the terminal #a receives the data #1, feedback of HARQ information is not needed, and it is not needed to determine whether the PSFCH transmission affects LTE-V transmission, thereby saving power consumption of the terminal #a. In addition, the terminal #b is prevented from being affected by the PSFCH transmission when receiving the LTE-V transmission, for example, the adjustment of the LTE-V power corresponding to the PSFCH AGC symbol exceeds the upper limit. In another possible implementation manner, for the resource #a in the resource set #a1 or the resource #a in the resource set #a2, the terminal #b determines whether to enable HARQ feedback, which is feedback information carried on the resource #b, in the second stage SCI according to the determination result in S220.

As an example and not by way of limitation, when the resource #a and the resource #b satisfy the condition #c, i.e., the resources occupied by the LTE-V transmission do not overlap with the resource #b, the terminal #b transmits the indication information #2 (an example of the second indication information), and the indication information #2 is carried in the second-stage SCI for indicating that HARQ feedback is enabled.

As an example and not by way of limitation, when the resource #a and the resource #b satisfy the condition #d, i.e., when the resource occupied by the LTE-V transmission overlaps with the resource #b, the terminal #b transmits the indication information #3 (an example of the third indication information), the indication information #3 being carried in the second-stage SCI for indicating that HARQ feedback is disabled.

In another possible implementation, the data itself does not require HARQ enablement, and the terminal #b indicates disabling HARQ feedback, specifically, when the second stage SCI of the scheduling data is transmitted, the HARQ enable field included in the second stage SCI indicates "disabling HARQ feedback".

It should be understood that the terminal #b performs all steps of the method 200 at the MAC layer or the terminal #b performs all steps of the method 200 at the PHY layer, which is not limited in the embodiment of the present application.

Example 3

Fig. 14 illustrates a method 300 for information transmission provided in an embodiment of the present application. The method 300 may include the following steps.

S310, the terminal #C acquires instruction information #1 (an example of the first instruction information), the instruction information #1 being used for instructing resource #A (an example of the first resource), the resource #A belonging to resource set #1 (an example of the first resource set)

It should be noted that, the terminal #c is a device for transmitting data and receiving feedback information, and the terminal #c has not yet determined the resource #d (another example of the third resource) for transmitting data, where the resource #d is implicitly related to the resource #b, which is not specifically described herein in the embodiment of the present application.

The method for indicating the time-frequency position of the resource #a by the indication information #1, the method for determining the time-frequency position of the resource #a by the terminal #b according to the indication information #1, and the method for determining the resource #b by the terminal #c according to the resource #d may refer to the corresponding procedure in the previous method embodiment, which is not described herein again.

S320, the terminal #C determines whether the resources occupied by the LTE-V transmission and the resources #B overlap according to the indication information # 1.

The method for determining whether the resource #a and the resource #b meet the condition according to the indication information #1 by the terminal #b, thereby determining whether the resource occupied by the LTE-V transmission overlaps the resource #b may refer to the corresponding procedure in the previous method embodiment, which is not described herein. S330, the terminal #C transmits NR-V data with or without using the resource #D.

In one possible implementation, for resource #a in resource set #a3 or resource #a in resource set #a4, terminal #c determines to transmit NR-V data with or without using resource #d according to the result in S320. I.e. terminal #c performs resource selection according to the result in S320.

By way of example and not limitation, when resource #a and resource #b satisfy condition #a, i.e., the resources occupied by LTE-V transmission do not overlap with resource #b, terminal #c transmits NR-V data using or preferentially using resource #d. Specifically, in the resource selection process, the terminal #c only selects the resources of which the associated resource #b satisfies the condition #a, and determines a candidate resource set, where any candidate resource in the candidate resource set may be the resource #d (i.e., the candidate resource selected in the candidate resource combination is the resource #d). Or, in the resource selection process, when the MAC layer receives the candidate resource set, selecting the candidate resource of which the associated resource #b satisfies the condition #a for transmitting NR-V data.

By way of example and not limitation, when resource #a and resource #b satisfy condition #b, i.e., resources occupied by LTE-V transmission overlap with resource #b, terminal #c does not transmit NR-V data using resource #d or reduces priority of transmitting NR-V data using resource #d. Specifically, in the resource selection process, the terminal #c does not select the resource of which the associated resource #b satisfies the condition #b, so that the determined candidate resource set does not include the resource #d. Or in the resource selection process, when the MAC layer receives the candidate resource set, the candidate resource of which the associated resource #B meets the condition #B is not selected for transmitting NR-V data; alternatively, the candidate resource that the associated resource #b does not satisfy the condition #b is selected for transmitting the NR-V data, the candidate resource that the associated resource #b does not satisfy the condition #b is not, and then the associated resource #b or the candidate resource that satisfies the condition #b is selected for transmitting the NR-V data.

In another possible implementation, for resource #a in resource set #a1 or resource #a in resource set #a2, the terminal #c determines to transmit NR-V data with or without using resource #d according to the result in S320. I.e. terminal #c performs resource selection according to the result in S320. I.e. terminal #c performs resource selection according to the result in S320.

By way of example and not limitation, when resource #a and resource #b satisfy condition #c, i.e., the resources occupied by LTE-V transmission do not overlap with resource #b, terminal #c transmits NR-V data using or preferentially using resource #d. Specifically, in the resource selection process, the terminal #c only selects the resources of which the associated resource #b satisfies the condition #c, and determines a candidate resource set, where any candidate resource in the candidate resource set may be the resource #d (i.e., the candidate resource selected in the candidate resource combination is the resource #d). Or, in the resource selection process, when the MAC layer receives the candidate resource set, selecting the candidate resource of which the associated resource #b satisfies the condition #c for transmitting NR-V data.

By way of example and not limitation, when resource #a and resource #b satisfy condition #d, i.e., resources occupied by LTE-V transmission overlap with resource #b, terminal #c does not transmit NR-V data using resource #d or reduces priority of transmitting NR-V data using resource #d. Specifically, in the resource selection process, the terminal #c does not select the resource of which the associated resource #b satisfies the condition #d, so that the determined candidate resource set does not include the resource #d. Or in the resource selection process, when the MAC layer receives the candidate resource set, the candidate resource of which the associated resource #B meets the condition #D is not selected for transmitting NR-V data; alternatively, candidate resources that do not satisfy the condition #d of the associated resource #b are selected for transmitting the NR-V data, and candidate resources that do not satisfy the condition #d of the associated resource #b are not selected, and then the associated resource #b or candidate resources that satisfy the condition #b are selected for transmitting the NR-V data.

It will be appreciated that the step of transmitting NR-V data using or preferentially using resource #d may be performed by terminal #c at different stages. For example, this step is performed during the selection of resources, at which stage the use of resource #d is to be understood as selecting resource #d, and the preferential use of resource #d is to be understood as preferential selection of resource #d.

In the process of selecting resources, the terminal #c only selects candidate resources of the corresponding resources #b, which do not overlap with resources occupied by LTE-V transmission in the time domain. This step is performed at the PHY layer (then the corresponding S310, S320 are both performed at the PHY layer). When the PHY layer reports the set of candidate resources to the MAC layer. The MAC layer selects one of the candidate resources to use from among the set of candidate resources. The one resource may be understood as resource #d.

In the process of selecting the resources, the terminal #c determines that the candidate resource set includes a subset of candidate resources where the corresponding resources #b and the resources occupied by the LTE-V transmission do not overlap in the time domain and a subset of candidate resources where the corresponding resources #b and the resources occupied by the LTE-V transmission overlap in the time domain. This step is performed at the PHY layer (then the corresponding S310, S320 are both performed at the PHY layer). When the PHY layer reports the set of candidate resources to the MAC layer. The MAC layer selects one of the resources from the candidate resource subsets which are not overlapped in time domain in the resources occupied by the corresponding resource #B and the LTE-V transmission. The one resource may be understood as resource #d.

For example, after determining the candidate resource set, when the MAC layer selects a resource, it preferentially selects a candidate resource that the corresponding resource #b does not overlap with the resource occupied by LTE-V transmission in the time domain. This step is performed at the PHY layer (then the corresponding S320 is performed at the MAC layer).

For example, after determining the candidate resource set, when the MAC layer selects a resource, for data that needs to enable HARQ, the MAC layer preferentially selects a candidate resource that does not overlap in time domain between the corresponding resource #b and the resource occupied by LTE-V transmission. This step is performed at the PHY layer (then the corresponding S320 is performed at the MAC layer). There is no need for any restriction in the resource selection process for HARQ de-enabled data.

Illustratively, this step is performed after the end of the resource selection, at which stage, using resource #d is understood as using resource #d, and preferentially using resource #d is understood as preferentially using resource #d, which is not limited in this application.

In one possible implementation, according to the indication information #1, the terminal #c determines that the resources occupied by the LTE-V transmission and the resources #d do not overlap and the resources occupied by the LTE-V transmission and the resources #b do not overlap, and then the terminal #c uses or preferentially uses the resources #d to transmit the NR-V data.

In another possible implementation manner, according to the indication information #1, the terminal #c determines that the resources occupied by the LTE-V transmission overlap with the resources #d and the resources occupied by the LTE-V transmission overlap with the resources #b, and then the terminal #c does not use or reduces the priority of transmitting the NR-V data using the resources #d.

By way of example and not limitation, terminal #c transmits NR-V data using resource #d, which also satisfies the method described in S320, i.e., resources occupied by resource #d and LTE-V transmission do not overlap in time domain. At this time, the resources for transmitting the NR-V data and the resources for transmitting the feedback information of the NR-V data do not affect the transmission of the LTE-V. In the embodiment of the present application, the method for determining whether the resources occupied by the resource #b and the LTE-V transmission overlap is also applicable to the resource #d.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (34)

1. A method of side-link communication, comprising:

acquiring first indication information, wherein the first indication information is used for indicating first resources, the first resources are resources occupied by LTE-V transmission, or the first resources are candidate resources for LTE-V transmission, and the first resources belong to a first resource set;

according to the first indication information, determining that resources occupied by LTE-V transmission are not overlapped with second resources, wherein the second resources are used for bearing feedback information corresponding to NR-V data, and the second resources belong to the first resource set;

and sending feedback information corresponding to the NR-V data on the second resource.

2. A method of side-link communication, comprising:

acquiring first indication information, wherein the first indication information is used for indicating first resources, the first resources are resources occupied by LTE-V transmission, or the first resources are candidate resources for LTE-V transmission, and the first resources belong to a first resource set;

determining a second resource according to a third resource, wherein the third resource is a candidate resource for sending NR-V data, the second resource is a resource for bearing feedback information corresponding to the NR-V data, and the second resource belongs to the first resource set;

According to the first indication information, determining that resources occupied by LTE-V transmission and the second resources are not overlapped;

transmitting the NR-V data on the third resource; or alternatively

And sending second indication information, wherein the second indication information is used for indicating to enable hybrid automatic repeat request (HARQ) corresponding to the NR-V data, and the HARQ is feedback information carried on a second resource.

3. The method according to claim 1 or 2, wherein the first resource is a candidate resource for LTE-V transmission, comprising:

the first resource is the residual candidate resource after the candidate resource overlapped with the resource occupied by the LTE-V transmission is excluded from the second resource set, and the second resource set is the resource set in the resource selection window corresponding to the LTE-V transmission; or alternatively

The first resource is the residual candidate resource in the second resource set, wherein the residual candidate resource is the candidate resource excluding the resource overlapping with the resource occupied by the LTE-V transmission, and the energy measurement value corresponding to the first resource is not higher than a first threshold value.

4. A method according to any one of claim 1 to 3, wherein,

the resources occupied by the LTE-V transmission and the second resources do not overlap in the time domain when at least one of the following conditions is met:

The second resource belongs to the first resource, and a fourth resource and the second resource are not overlapped in time domain, wherein the fourth resource is at least one candidate resource which is included in a first time domain unit and excludes the residual candidate resource of the first resource, and the first time domain unit is the time domain unit where the second resource is located; or alternatively

The second resource belongs to the first resource, and the number of candidate resources included in the first time domain unit is equal to a second threshold, wherein the second threshold is the maximum number of candidate resources included in the first time domain unit; or alternatively

The fourth resource and the second resource do not overlap in the time domain; or alternatively

The number of the fourth resources is 0; or alternatively

The first time domain unit includes a number of candidate resources equal to the second threshold.

5. The method according to claim 1 or 2, wherein the first resource is a resource occupied by LTE-V transmission, comprising:

the first resource is a resource occupied by LTE-V transmission, and the energy measurement value corresponding to the first resource is larger than a first threshold value.

6. The method according to claim 1 or 2 or 5, wherein the determining that the resources occupied by the LTE-V transmission and the second resources do not overlap according to the first indication information includes:

The first resource is a resource occupied by LTE-V transmission, and the first resource and the second resource do not overlap in time domain.

7. The method according to any of the claims 3 to 6, characterized in that the energy measure is a reference signal received power, RSRP, measure, the first threshold corresponding to a first priority and/or a second priority, the first priority being a priority used in LTE-V resource selection or reselection, the second priority being a priority indicated in the sideways control information, SCI; or alternatively

The energy measurement is one of a received signal strength indication, RSSI, channel quality indication, CQI, signal to interference plus noise ratio, SINR, and signal to noise plus power ratio, SNR, measurement, and the first threshold is preset or configured.

8. The method according to any one of claims 1 to 7, wherein the determining that the resources occupied by the LTE-V transmission and the second resources do not overlap according to the first indication information comprises:

determining that the time domain range of the first resource includes a time domain resource of the second resource.

9. A method of side-link communication, comprising:

acquiring first indication information, wherein the first indication information is used for indicating first resources, the first resources are resources occupied by LTE-V transmission, or the first resources are candidate resources for LTE-V transmission, and the first resources belong to a first resource set;

According to the first indication information, determining that resources occupied by LTE-V transmission overlap with second resources, wherein the second resources are used for bearing feedback information corresponding to NR-V data, and the second resources belong to the first resource set;

and not transmitting feedback information corresponding to the NR-V data on the second resource.

10. A method of side-link communication, comprising:

acquiring first indication information, wherein the first indication information is used for indicating first resources, the first resources are resources occupied by LTE-V transmission, or the first resources are candidate resources for LTE-V transmission, and the first resources belong to a first resource set;

determining a second resource according to a third resource, wherein the third resource is a candidate resource for sending NR-V data, the second resource is a resource for bearing feedback information corresponding to the NR-V data, and the second resource belongs to the first resource set;

according to the first indication information, determining that resources occupied by LTE-V transmission overlap with the second resources;

transmitting the NR-V data without using the third resource; or alternatively

And sending third indication information, wherein the third indication information is used for indicating to enable the hybrid automatic repeat request (HARQ) corresponding to the NR-V data, and the HARQ is feedback information carried on the second resource.

11. The method according to claim 9 or 10, wherein the first resource is a candidate resource for LTE-V transmission, comprising:

the first resource is the residual candidate resource after the candidate resource overlapped with the resource occupied by the LTE-V transmission is removed from the second resource set, and the second resource set is a resource set in a resource selection window corresponding to the LTE-V transmission; or alternatively

The first resource is the residual candidate resource in the first resource set, wherein the residual candidate resource is the candidate resource excluding the resource overlapping with the resource occupied by the LTE-V transmission, and the energy measurement value corresponding to the first resource is not higher than a first threshold value.

12. The method according to any one of claims 9 to 11, wherein,

the resources occupied by the LTE-V transmission and the second resources overlap in the time domain when at least one of the following conditions is met:

the second resource does not belong to the first resource; or alternatively

The fourth resource overlaps with the second resource in the time domain, the fourth resource is at least one candidate resource included in a first time domain unit, the remaining candidate resources of the first resource are excluded, and the first time domain unit is the time domain unit where the second resource is located; or alternatively

The number of the candidate resources included in the first time domain unit is smaller than a second threshold, and the second threshold is the maximum number of the candidate resources included in the first time domain unit; or alternatively

The number of the fourth resources is not 0.

13. The method according to any of claims 9 to 12, wherein the first resource is a resource occupied by LTE-V transmission, comprising:

the first resource is a resource occupied by LTE-V transmission, and the energy measurement value corresponding to the first resource is larger than a first threshold value.

14. The method according to claim 9 or 10 or 13, wherein said determining that the resources occupied by the LTE-V transmission overlap with the second resources according to the first indication information comprises:

the first resource is a resource occupied by LTE-V transmission, and the first resource and the second resource overlap in time domain.

15. The method according to any of the claims 11 to 14, characterized in that the energy measurement is an RSRP measurement, the first threshold corresponding to a first priority being a priority used in LTE-V resource selection or reselection and/or a second priority being a priority indicated in the sideways control information SCI; or alternatively

The energy measurement is one of an RSSI measurement, a CQI measurement, an SINR measurement, and an SNR measurement, and the first threshold is preset or configured.

16. The method of claim 9, wherein determining that the resources occupied by the LTE-V transmission overlap with the second resources based on the first indication information comprises:

and determining that the time domain range of the first resource does not comprise the time domain resource of the second resource, and not transmitting feedback information corresponding to the NR-V data.

17. A side-link communication apparatus, comprising:

a receiving unit, configured to obtain first indication information, where the first indication information is used to indicate a first resource, where the first resource is a resource occupied by LTE-V transmission, or the first resource is a candidate resource for LTE-V transmission, and the first resource belongs to a first resource set;

the processing unit is configured to determine, according to the first indication information, that resources occupied by LTE-V transmission and second resources are not overlapped, where the second resources are used to carry feedback information corresponding to NR-V data, and the second resources belong to the first resource set;

and the sending unit is used for sending feedback information corresponding to the NR-V data on the second resource.

18. A side-link communication apparatus, comprising:

a receiving unit, configured to obtain first indication information, where the first indication information is used to indicate a first resource, where the first resource is a resource occupied by LTE-V transmission, or the first resource is a candidate resource for LTE-V transmission, and the first resource belongs to a first resource set;

the processing unit is used for determining a second resource according to a third resource, wherein the third resource is a candidate resource for sending NR-V data, the second resource is a resource for bearing feedback information corresponding to the NR-V data, and the second resource belongs to the first resource set; and

according to the first indication information, determining that resources occupied by LTE-V transmission and second resources are not overlapped;

a transmitting unit, configured to transmit the NR-V data on the third resource; or alternatively

And sending second indication information, wherein the second indication information is used for indicating to enable hybrid automatic repeat request (HARQ) corresponding to the NR-V data, and the HARQ is feedback information carried on a second resource.

19. The apparatus according to claim 17 or 18, wherein the first resource is a candidate resource for LTE-V transmission, comprising:

The first resource is the residual candidate resource after the candidate resource overlapped with the resource occupied by the LTE-V transmission is excluded from the second resource set, and the second resource set is the resource set in the resource selection window corresponding to the LTE-V transmission; or alternatively

The first resource is the residual candidate resource in the second resource set, wherein the residual candidate resource is the candidate resource excluding the resource overlapping with the resource occupied by the LTE-V transmission, and the energy measurement value corresponding to the first resource is not higher than a first threshold value.

20. The device according to any one of claims 17 to 19, wherein,

the processing unit determines that the resources occupied by the LTE-V transmission and the second resources do not overlap in the time domain when at least one of the following conditions is met:

the second resource belongs to the first resource, and a fourth resource and the second resource are not overlapped in time domain, wherein the fourth resource is at least one candidate resource which is included in a first time domain unit and excludes the residual candidate resource of the first resource, and the first time domain unit is the time domain unit where the second resource is located; or alternatively

The second resource belongs to the first resource, and the number of candidate resources included in the first time domain unit is equal to a second threshold, wherein the second threshold is the maximum number of candidate resources included in the first time domain unit; or alternatively

The fourth resource and the second resource do not overlap in the time domain; or alternatively

The number of the fourth resources is 0; or alternatively

The first time domain unit includes a number of candidate resources equal to the second threshold.

21. The apparatus according to claim 17 or 18, wherein the first resource is a resource occupied by LTE-V transmission, comprising:

the first resource is a resource occupied by LTE-V transmission, and the energy measurement value corresponding to the first resource is larger than a first threshold value.

22. The apparatus according to claim 17 or 18 or 21, wherein the processing unit determining, according to the first indication information, that the resources occupied by LTE-V transmission and the second resources do not overlap comprises:

the first resource is a resource occupied by LTE-V transmission, and the first resource and the second resource do not overlap in time domain.

23. The apparatus according to any of claims 19 to 22, wherein the energy measure is a reference signal received power, RSRP, measure, the first threshold corresponding to a first priority and/or a second priority, the first priority being a priority used in LTE-V resource selection or reselection, the second priority being a priority indicated in the sideways control information, SCI; or alternatively

The energy measurement is one of a received signal strength indication, RSSI, channel quality indication, CQI, signal to interference plus noise ratio, SINR, and signal to noise plus power ratio, SNR, measurement, and the first threshold is preset or configured.

24. The apparatus according to any one of claims 17 to 23, wherein the processing unit determining that the resources occupied by the LTE-V transmission and the second resources do not overlap according to the first indication information, comprises:

determining that the time domain range of the first resource includes a time domain resource of the second resource.

25. A side-link communication apparatus, comprising:

a receiving unit, configured to obtain first indication information, where the first indication information is used to indicate a first resource, where the first resource is a resource occupied by LTE-V transmission, or the first resource is a candidate resource for LTE-V transmission, and the first resource belongs to a first resource set;

the processing unit is used for determining that resources occupied by LTE-V transmission overlap with second resources according to the first indication information, the second resources are used for bearing feedback information corresponding to NR-V data, and the second resources belong to the first resource set;

And the sending unit is used for not sending the feedback information corresponding to the NR-V data on the second resource.

26. A side-link communication apparatus, comprising:

a receiving unit, configured to obtain first indication information, where the first indication information is used to indicate a first resource, where the first resource is a resource occupied by LTE-V transmission, or the first resource is a candidate resource for LTE-V transmission, and the first resource belongs to a first resource set;

the processing unit is used for determining a second resource according to a third resource, wherein the third resource is a candidate resource for sending NR-V data, the second resource is a resource for bearing feedback information corresponding to the NR-V data, and the second resource belongs to the first resource set; and

according to the first indication information, determining that resources occupied by LTE-V transmission overlap with the second resources;

a transmission unit that transmits the NR-V data without using the third resource; or alternatively

And sending third indication information, wherein the third indication information is used for indicating to enable the hybrid automatic repeat request (HARQ) corresponding to the NR-V data, and the HARQ is feedback information carried on the second resource.

27. The apparatus of claim 25 or 26, wherein the first resource is a candidate resource for LTE-V transmission, comprising:

the first resource is the residual candidate resource after the candidate resource overlapped with the resource occupied by the LTE-V transmission is removed from the second resource set, and the second resource set is a resource set in a resource selection window corresponding to the LTE-V transmission; or alternatively

The first resource is the residual candidate resource in the first resource set, wherein the residual candidate resource is the candidate resource excluding the resource overlapping with the resource occupied by the LTE-V transmission, and the energy measurement value corresponding to the first resource is not higher than a first threshold value.

28. The apparatus according to any of claims 25 to 27, wherein the first resource is a candidate resource for LTE-V transmission, and the processing unit determines, according to the first indication information, that the resource occupied by LTE-V transmission overlaps with a second resource, comprising:

the processing unit determines that the resources occupied by LTE-V transmissions and the second resources overlap in time domain when at least one of the following conditions is met:

the second resource does not belong to the first resource; or alternatively

The fourth resource overlaps with the second resource in the time domain, the fourth resource is at least one candidate resource included in a first time domain unit, the remaining candidate resources of the first resource are excluded, and the first time domain unit is the time domain unit where the second resource is located; or alternatively

The number of the candidate resources included in the first time domain unit is smaller than a second threshold, and the second threshold is the maximum number of the candidate resources included in the first time domain unit; or alternatively

The number of the fourth resources is not 0.

29. The apparatus according to any of claims 25 to 28, wherein the first resource is a resource occupied by LTE-V transmission, comprising:

the first resource is a resource occupied by LTE-V transmission, and the energy measurement value corresponding to the first resource is larger than a first threshold value.

30. The apparatus according to claim 25 or 26 or 29, wherein the processing unit determining, according to the first indication information, that resources occupied by LTE-V transmission overlap with second resources comprises:

the first resource is a resource occupied by LTE-V transmission, and the first resource and the second resource overlap in time domain.

31. The apparatus according to any of the claims 27 to 30, characterized in that the energy measure is an RSRP measure, the first threshold corresponding to a first priority and/or a second priority, the first priority being a priority used in LTE-V resource selection or reselection, the second priority being a priority indicated in the sideways control information SCI; or alternatively

The energy measurement is one of an RSSI measurement, a CQI measurement, an SINR measurement, and an SNR measurement, and the first threshold is preset or configured.

32. The apparatus of claim 25, wherein the processing unit determining, based on the first indication information, that resources occupied by LTE-V transmissions overlap with second resources, comprises:

and determining that the time domain range of the first resource does not comprise the time domain resource of the second resource, wherein the sending unit does not send feedback information corresponding to the NR-V data.

33. A computer readable storage medium, characterized in that the computer readable storage medium has stored thereon a computer program which, when run,

causing an apparatus to perform the method of any one of claims 1 to 8; or alternatively

Causing an apparatus to perform the method of any one of claims 9 to 16.

34. A chip system, comprising: at least one processor and a memory, the at least one processor and the memory coupled, the processor operable to invoke and run the computer program from the memory,

causing a communication device on which the chip system is mounted to perform the method of any one of claims 1 to 8; or alternatively

Causing a communication device on which the chip system is mounted to perform the method of any one of claims 9 to 16.